Mouse is one of the kindest characters to dress up as, because the whole look rests on a pair of blue overalls most families already own. Add round ears, a tail, a few whiskers and a big chocolate chip cookie, and the book reads from the far end of a school corridor. I've laid out 45 versions below, from babies and toddlers to teachers, couples, whole families and even the dog. Each one notes what I'd change for a warm October afternoon, a cold trick-or-treat route, school rules or a child who can't stand scratchy fabric. Start with the version that suits the person wearing it, not the one that looks cutest in a photo.

Felt Ears That Still Stand Up at Home Time
Ears are what turn a child in overalls into Mouse, and they're the piece that fails first. Floppy felt folds forward by mid-morning, and once the ears droop the whole costume loses its shape. These are the habits I rely on when I make them.
- Use stiff felt, or glue two layers of ordinary craft felt together with a piece of thin card between them. That sandwich holds a curve and won't flop.
- Cut each ear as a circle with a tab at the bottom, then wrap the tab around the headband and glue or stitch it. Ears glued only to the top edge of a band snap off the first time a child pulls it on.
- Make the pink inner circle a little smaller than the gray one so a gray rim shows. From across a room, that pink centre is what tells people it's an ear.
- Wrap the headband in a strip of fleece before attaching anything. It grips hair better and stops hard plastic pressing behind the ears.
A tail that stays on through a parade
Sew or safety-pin the tail from the inside of the overalls, never through the outside where a pin can pop open. A craft stem or pipe cleaner inside a fleece tube gives it a curve that lasts. For small children, I keep the tail no longer than the back of the knee, so it can't be stepped on or shut in a door.
1. Classic If You Give A Mouse A Cookie Costume

This is the version I make most often, and it's the one people name first. Light-wash denim overalls go over a gray or beige long-sleeve shirt, with gray felt ears on a plain headband and skin-safe face paint for a small pink nose and three short whiskers on each cheek. Pin a thin fabric tail to the back of the overalls from the inside, so the pin can't open against skin. Gray socks and brown sneakers finish the base. For the cookie, I paint a cardboard circle light brown and glue on dark brown felt chips; the felt gives a texture paint alone never does. In a book parade, hold it at chest height. Down at the hip it disappears behind the child in front.
2. Easy DIY If You Give A Mouse A Cookie Costume

No sewing machine needed here. Blue overalls, a cream tee, gray leggings and neutral sneakers make the base. Cut two large gray felt circles and two smaller pink ones and glue them to a basic headband. I let fabric glue cure overnight, because felt glued in a hurry on parade morning tends to pop off by lunch. For the tail, twist a long strip of gray fleece around a flexible craft stem so it holds a curve, and fix it with a large safety pin hidden inside the overalls. A pink makeup pencil handles the nose and brown eyeliner draws the whiskers. The cookie is recycled cardboard covered in tan paper with dark brown circles, and the whole outfit comes off in seconds after the classroom parade.
3. Toddler If You Give A Mouse A Cookie Costume

Toddlers will run, sit on the floor and roll, so I dress them for that first. Stretchy denim overalls or a soft overall-style romper over a gray cotton bodysuit gives them room. Put lightweight felt ears on a flexible fabric headband; a tight plastic band gets pulled off within minutes and usually ends up in a mouth. Face paint stays tiny, a pink dot of a nose and two whiskers per cheek, and slip-on sneakers keep preschool drop-off simple. Swap the cardboard cookie for a plush one in tan fleece with brown felt circles, stitched or glued and lightly stuffed, so it can live in the front pocket between photos. A short fleece tail is plenty. Anything longer gets stepped on by the toddler behind.
4. Baby If You Give A Mouse A Cookie Costume

With babies, comfort is the costume. I build on a soft gray bodysuit and an overall romper with no stiff buckles or rough seams, then add a knit mouse-ear hat with small pink centres. Skip face paint entirely, since babies rub their faces and it ends up in their eyes; the hat and the colours carry the character on their own. Gray booties or socks keep feet warm. Make the cookie a flat tan felt circle with brown appliqués stitched down rather than glued, and let it rest beside the baby for supervised photos instead of fastening it to the clothes. A small gray tail sewn onto the romper is the only extra I'd add for stroller walks and family pictures.
5. Adult Woman If You Give A Mouse A Cookie Costume

For an adult, I treat Mouse as an outfit first and a costume second. Fitted denim overalls, a ribbed gray top and clean white sneakers, cuffs rolled once. Two rounded space buns can stand in for ears, though a gray velvet ear headband reads more clearly across a room, so I'd wear the headband to a big party and the buns to work. Keep the makeup soft with gray eyeshadow, a pink nose and fine whiskers. Add a slim gray tail at the back and a small plush cookie in the bib pocket. A cookie-shaped crossbody bag does double duty as the prop and somewhere to keep your phone, which beats carrying a cardboard circle all night.
6. Adult Man If You Give A Mouse A Cookie Costume

Relaxed blue overalls over a heather-gray thermal shirt is the base for a men's Mouse, with charcoal sneakers indoors or work boots outside. A gray beanie with round ears sewn on is easier than a headband for anyone with short hair, because headbands slide straight off cropped hair. Draw a pinkish nose and short whiskers with a washable makeup pencil. Attach a gray rope or fleece tail to the back of the overalls and check that it ends above the ground; a tail that touches the floor gets trodden on the first time someone stands behind you. Carry an oversized foam cookie or tuck a felt one in the pocket. A light empty cup with a simple milk drawing on it adds the next step of the story.
7. Teacher If You Give A Mouse A Cookie Costume

Teachers wear this for a whole school day, so I plan for hours of standing, crouching and walking between desks. Dark-wash overalls, a gray long-sleeve tee and the sneakers or loafers you'd teach in anyway. A padded ear headband matters more than it sounds, because thin plastic bands press behind the ears and give plenty of people a headache by mid-morning. Keep the makeup to a pink nose, subtle whiskers and rosy cheeks. Put a felt cookie in the bib pocket and carry the book itself for the parade or read-aloud, with a cookie-shaped tote for pencils and personal things. If a tail would catch on chairs, make it short and fix it near the waist.
8. Plus Size If You Give A Mouse A Cookie Costume

Fit decides this one. I look for soft, adjustable overalls in a relaxed or wide-leg cut, and a cross-back or stretch-waist style moves far more easily than rigid denim. Layer them over a breathable gray knit top in whatever sleeve length suits the weather, then add cushioned sneakers, gray ears, a small pink nose and gently drawn whiskers. A lightweight cookie crossbody bag gives a clear focal point and frees your hands. Clip the soft gray tail to the waistband so it comes off when you sit. Buy the size that's comfortable, not the size you think the silhouette needs; you'll be in it for hours.
9. Warm Weather If You Give A Mouse A Cookie Costume

Full-length denim gets hot quickly on a warm October evening, so I switch to short overalls and a lightweight gray tee. Gray ankle socks and canvas sneakers keep it breathable, and a thin fabric-covered headband with felt ears replaces any hat or wig. Face paint stays small, just a pink and brown nose and whiskers, because full-face paint on a warm night softens and creases fast. A narrow strip of fleece makes a tail that stays light. Carry a flat foam cookie or wear a cookie crossbody bag to keep your hands free. Leave plush bodysuits and thick layers at home for this one.
10. Cold Weather If You Give A Mouse A Cookie Costume

This is the version I'd send out on a cold trick-or-treat route. Fleece-lined overalls go over a gray thermal shirt and warm leggings, with a soft gray hoodie under the bib. Pull the hood up and slide the ear headband over it, which also stops the band pinching. Gray knit gloves, thick socks and insulated brown boots do the real work. For the face, use makeup that copes with cold, damp air, or put whisker lines on a comfortable gray mask instead. Clip the fleece tail high so it doesn't drag. My favourite trick is making the cookie a small tan fleece pouch with felt chips, big enough to slip a hand warmer inside.
11. Pajama If You Give A Mouse A Cookie Costume

Gray pajamas under loose denim overalls, or an overall-print sleep romper, turn Mouse into a pajama-day outfit. Choose long sleeves and a soft crew neck, then fuzzy gray socks with house shoes that have grippy soles; plain socks on a polished school floor are slippery. A plush ear headband and short fleece tail do the character work, and the makeup is just a pink nose and a few soft whiskers. A stuffed fabric cookie tucks under one arm like a bedtime pillow, with a light plastic cup as the milk. I'd pick this for a reading night or a family movie evening where comfort wins over construction.
12. Tutu If You Give A Mouse A Cookie Costume

A gray tutu over denim shorts or stretchy blue leggings softens the whole look. With a fitted gray tee, make overall straps from ribbon or old suspenders. Ribbon straps slide off small shoulders, so I stitch a short cross strap at the back to hold them. A headband with large rounded ears balances the volume of the skirt. Style the hair in a high ponytail or two buns, then add the pink nose, whiskers and rosy cheeks. Gray ballet flats or sneakers handle the walking. The prop is a round tan felt cookie purse with dark brown appliqués, and a narrow tail attached under the tutu peeks out at the back.
13. Overall Dress If You Give A Mouse A Cookie Costume

A denim overall dress is my answer for anyone who'd rather not wear dungaree pants. Layer it over a gray mock-neck or fitted long-sleeve tee and add gray tights, which carry the mouse colour all the way down. Brown ankle boots, loafers or white sneakers, depending on where you're headed. Put felt ears on a padded headband and wear the hair in a low ponytail so the ears stay visible, then add a soft pink nose and neat whiskers. The gray tail attaches under the back hem. A cookie handbag or a light foam cookie held at the waist finishes it, and the outfit stays tidy enough for an office or a classroom.
14. Vintage If You Give A Mouse A Cookie Costume

For a nostalgic Mouse, I go for high-waisted denim overalls, a cream ringer tee and brown lace-up sneakers, with the cuffs rolled over striped socks in muted blue, gray and ivory. Soft gray felt ears look handmade in the right way; shiny plastic ears work against the whole idea. Short hair gets a side part and longer hair low pigtails. A lightly powdered pink nose and fine brown whiskers keep the makeup gentle. Braid gray yarn into a tail and sew it to the waistband. Paint an oversized cardboard cookie with uneven chips, because a hand-cut, slightly wobbly cookie looks more like a book illustration than a perfect circle does.
15. Gray Monochrome If You Give A Mouse A Cookie Costume

Charcoal overalls over a pale gray shirt, slate sneakers and matching socks. The blue is gone, but the bib shape still says Mouse. What keeps an all-gray outfit from looking flat is texture, so I mix brushed cotton, washed denim, felt ears and a fleece tail. Makeup stays cool-toned: soft eyeshadow, a dusty pink nose and fine charcoal whiskers. The one warm note is a large tan cookie purse with dark brown felt chips, and against all that gray it's the first thing anyone notices. Adults and teens who dislike bright colour tend to choose this one.
16. Brown Mouse If You Give A Mouse A Cookie Costume

Brown suits a mouse as well as gray does, and it feels warmer for autumn. Keep classic blue overalls over a cocoa shirt with brown tights or fitted pants. Add rounded brown ears with blush-pink centres and a matching fleece tail, plus warm neutral makeup: a rosy nose, soft shading on the cheeks and dark brown whiskers. Brown sneakers or ankle boots stop any unrelated colour creeping in. Carry a tan cookie with dark chocolate chips or wear a cookie bag across the body. One thing I watch for is the tan cookie blending into a brown base, so I make the chips extra dark and extra large. If the evening turns cold, slide a brown cardigan under the overall straps.
17. White Mouse If You Give A Mouse A Cookie Costume

White overalls over an ivory or light gray shirt, with white leggings, socks and clean sneakers. A warning first: white overalls show every grass stain and drip of juice, so I keep this one for indoor events. Make the ears from white felt with pale pink centres, and keep the short white fleece tail well off the floor. Use a pink nose, pearl-gray eyeshadow and thin gray whiskers. Because the clothes are so pale, the cookie needs a rich tan with oversized dark chips for contrast, and a pale blue cup adds the milk. It reads clearly in bright rooms and in group lineups.
18. Plush If You Give A Mouse A Cookie Costume

A soft gray fleece jumpsuit under loose blue overalls makes the cuddliest Mouse. Pick one with a hood and sew or glue rounded felt ears to the top. If the hood already has a printed animal face, cover it with a felt patch so it doesn't argue with the mouse nose. A pale pink felt nose, fabric whiskers and a padded gray tail mean you can skip face paint altogether. Gray slippers or plush boot covers finish the shape, and the cookie is stuffed tan fleece. Fleece jumpsuits overheat fast indoors and hoods can block side vision, so check that the wearer can see and turn their head. It's best on a cool night or at a relaxed indoor party.
19. Book Parade If You Give A Mouse A Cookie Costume

Parades are watched from a distance, so I design for the back of the hall. Blue overalls, a medium-gray shirt, bright gray ears and sneakers. Paint a big cookie on lightweight foam board and add a ribbon strap so it hangs like a sign when both hands are needed. Include a fabric tail and simple whiskers, but stitch or pin anything that could drop off mid-parade. Carry the book with the cover facing out, and tuck a small empty cup into the pocket as another clue. Before the day, I walk the child around the house in the full outfit. Anything that slips gets fixed there, not in the playground.
20. Sensory Friendly If You Give A Mouse A Cookie Costume

For a child with sensory sensitivities, I start from clothes they already wear happily. Soft overalls, or blue sweatpants with fabric straps sewn to the shoulders, go with a tag-free gray tee and their usual sneakers. Tight headbands, scratchy felt, heavy props and full-face makeup can all be left out. Ears can sit on a loose hood, a soft cap or hair clips, or be printed straight onto the shirt. A small pink sticker can be the nose, or the face can stay bare. A flat fabric cookie on the front pocket gives the story clue without anything to hold. Let them try the whole outfit a few days early; if something itches, you'll find out at home rather than at school.
21. Wheelchair Adaptive If You Give A Mouse A Cookie Costume

Seated, the overalls and ears do most of the work, and the chair can carry the rest. Soft blue overalls or an overall-print shirt go over a gray long-sleeve top, with gray sneakers resting on the footplates and ears on a comfortable cap or headband. Pink nose and whiskers are optional. Fix a short tail to the side of the seat, well away from the wheels. A removable lap panel painted as a big chocolate chip cookie turns the chair into part of the story. I make it from lightweight foam and fasten it with soft straps that release with one pull. A cup-shaped decoration on the side can stand for the milk. Keep every piece clear of the controls, brakes, wheels and the wearer's line of sight.
22. Maternity If You Give A Mouse A Cookie Costume

A maternity Mouse needs layers that support without pressing. Soft maternity denim overalls or a blue overall-style dress go over a stretchy gray top, with supportive sneakers, gray socks and a light ear headband. The makeup stays gentle: a small pink nose, soft whiskers and a little colour on the cheeks. Put the short fleece tail near the waistband where it won't dig in when you sit. Hold a light cookie in front of the bump, or wear a flat cookie crossbody bag above it. I'd avoid heavy signs and any strap that crosses the belly. It pairs nicely with a partner dressed as the cookie or the glass of milk.
23. Teen If You Give A Mouse A Cookie Costume

Teens usually want this to look like an outfit, not a costume. Relaxed denim overalls, a cropped or fitted gray tee and platform sneakers, with enough coverage to meet school dress rules. Two space buns or small gray ear clips replace a headband. Keep the makeup subtle with a rosy nose, brown whiskers and neutral eyes. Clip the soft tail to a back pocket and carry a cookie shoulder bag instead of a cardboard sign. A reusable cup in a blue-and-white paper sleeve covers the milk. It gets through spirit week or a group photo without anyone feeling silly.
24. Sibling If You Give A Mouse A Cookie Costumes

Two siblings as matching Mice wear blue overalls, gray shirts, ears, whiskers and soft gray tails. I separate them with small changes, light-wash denim on one and dark-wash on the other, so the photos don't look like a copy and paste. Each child wears familiar sneakers and carries a soft cookie in a different size, or one carries the cookie and the other a light cup for the milk. Keep the ear shape and makeup identical so they still read as a pair. With different ages, scale every piece to the child; a toddler wearing a big sibling's tail will trip on it.
25. Mouse And Cookie Couple Costume

One partner is Mouse in denim overalls, a gray shirt, round ears, whiskers, a tail and neutral sneakers. The other is the chocolate chip cookie, in a tan top and pants under a large round panel. I cut that panel from lightweight foam, glue on dark brown fabric chips and add shoulder straps, and brown shoes keep the cookie consistent. Mouse carries a small empty cup. Measure your narrowest doorway and the car before you cut: a cookie wider than your shoulders means turning sideways through every door all evening. Partners, friends, siblings or a parent and teen can all share this pairing.
26. Mouse And Milk Couple Costume

Mouse wears the classic overalls, gray shirt, ears, whiskers and tail and carries a plush cookie, while the partner becomes a glass of milk in a white shirt and pants under a lightweight cylindrical tunic. A pale blue band near the top and white sneakers at the bottom finish the glass, and a white cap or headband suggests the milk's surface without covering the face. Flexible foam or fabric beats cardboard for the tunic, because a cardboard tube won't let you bend or sit. Keep the cookie with Mouse so overalls, cookie and milk all sit side by side in every photo.
27. Mouse And Boy Duo Costume

Here one person plays Mouse and the other plays the boy who keeps answering every request. Mouse wears blue overalls, a gray top, soft ears, a tail, whiskers and brown sneakers and carries a large cookie. The boy needs only a striped shirt, casual pants, sneakers and a light tray or empty cup. I keep his outfit deliberately plain, since every detail you add to him takes attention away from Mouse. Blue, cream, brown and gray tie the two together. Siblings and parent-child pairs do this well because both outfits come mostly from the closet.
28. Parent And Child Mouse Costumes

Matching Mice is the easiest family route, because you're really making one costume twice. Both people wear denim overalls and gray tops with ear headbands, pink noses, whiskers and soft tails. The parent wears supportive sneakers and carries the big cardboard cookie, and the child holds a small plush one. I vary the shade of denim or gray so the pair looks coordinated rather than uniformed. If the child refuses face paint, stitch a tiny felt nose and whiskers onto a soft cap. A light cup in the parent's overall pocket adds the milk.
29. Family Mouse Cookie And Milk Costumes

Three people can cover Mouse, the cookie and the glass of milk. Mouse wears blue overalls over gray with ears, whiskers, a tail, sneakers and a small cookie. The cookie wears tan under a round foam panel with brown chips, and the milk wears white with a soft white-and-blue tunic and white shoes. Keep every build light enough to walk and sit in. If a small child is Mouse, give the bigger food and drink panels to the adults, who can actually carry them for a couple of hours. Using the same fabric finish for all three, matte cotton for example, makes them look like one set in photos.
30. Family Story Sequence Costumes

Give each family member a step in Mouse's chain of requests. Mouse in overalls and gray ears, the cookie in tan, the milk in white and the straw in a red-and-white striped fabric tunic. A fifth person in a blue apron with a soft broom covers the cleaning up. Everyone wears coordinating neutral sneakers and carries only light props, and nobody gets boxed into a rigid structure they can't move in. Mouse stays at the centre with a small book or cookie. What makes it land is standing in story order; shuffled, it looks like a row of random objects.
31. Story Prop Group Costumes

Mouse leads in denim overalls, gray ears, whiskers, a tail and sneakers, and the rest of the group become the book's objects: cookie, milk glass, straw, napkin, broom and drawing. Each wears simple colour-blocked clothes under a light front panel, tan and brown for the cookie, white and blue for the milk, red and white for the straw and crisp white layers for the napkin. Dress the broom in brown with a tan fringe skirt rather than handing someone a real broom to swing around a crowded room. Give everyone a small matching headpiece and comfortable shoes. Teaching teams, coworkers and large friend groups can pull this together in an evening.
32. Classroom If You Give A Mouse A Cookie Costumes

A whole class as Mice, with the teacher as the cookie, is cheap and easy to organise. Students wear blue overalls or blue pants with homemade fabric straps, gray shirts, paper or felt ears and their own comfortable shoes. Face details stay optional so no child is left out. Each Mouse pins a flat felt cookie to a pocket or shirt. The teacher wears tan under a large foam cookie panel with brown shoes and a cookie headband, and another adult in white can be the milk. Choose flame-resistant craft materials where you can, and keep tails short, because a room full of long tails means someone trips. I'd send a short supply list home a week before book week.
33. Matching Friends Mouse Costumes

Friends can share one formula and still look like themselves. Everyone starts with blue overalls, gray tops, round ears, tails, whiskers and cookies. Then one wears short overalls, another a denim overall dress and another a relaxed full-length pair. What makes a group look planned is matching the ear colour and the cookie design exactly; shoes and hairstyles can vary freely as long as the ears stay visible. For photos, gather everyone round one oversized cookie. School friends, book clubs and teaching teams all get a lot out of this one.
34. Dog If You Give A Mouse A Cookie Costume

Only dress a dog that already tolerates clothes. A soft blue overall-style harness over a light gray shirt makes the base. Ears go on the hood only if the dog already accepts headwear; otherwise put them on the back near the shoulders, where they show without touching the face. Keep the fabric tail short enough that it can't reach the dog's mouth or feet, and stitch a flat felt cookie to the side of the harness instead of any handheld prop. Booties only if the dog wears them normally. No face paint, no dangling whiskers, no rigid cardboard and no tight elastic. Watch the dog throughout and take the costume off at the first sign of discomfort.
35. Cat If You Give A Mouse A Cookie Costume

Cats put up with far less than dogs, so I keep this minimal. A soft gray pet shirt with a light blue bib panel suggests the overalls, and a flat tan cookie appliqué goes on the back where people can see it. No face makeup, whiskers or false tail, since the cat already has its own and its face is sensitive. A loose cap with tiny ears only if the cat already wears one without fuss. Leave the paws bare so it can grip indoor floors. The funniest version is a human Mouse or cookie standing beside the cat. Keep wear time short, supervise, and if the cat looks stressed, let it sit this one out.
36. Parent And Baby Mouse Costume

The parent is the full Mouse in denim overalls, a gray shirt, ears, whiskers, a fleece tail and sneakers. The baby is the cookie, in a tan romper with brown fabric circles sewn on and tan booties. A soft round cookie panel can attach to the front of a baby carrier, leaving the baby's face, arms and legs completely free; I check the airflow around the baby's face before anything else. You can also swap the roles, with the baby as Mouse in an overall romper and the parent in a cookie sandwich board. Keep every baby piece soft, breathable and firmly stitched. On busy outings it helps that the smallest person stays safely in the carrier the whole time.
37. Cardboard Cookie If You Give A Mouse A Cookie Costume

Here the cookie is the star. Wear blue overalls over a gray sweatshirt with gray sneakers, felt ears, whiskers and a soft tail. Cut a large circle from sturdy corrugated cardboard, round the edges and cover it with kraft paper or tan paint. Irregular brown paper chips read from a distance; perfectly round chips look like polka dots. Two wide fabric straps on the back let it be worn like a backpack or carried in front. Keep the bottom edge above the knee so walking stays easy. Cardboard softens in damp air, so I brush on a coat of clear sealer if it's going outdoors. A small cookie in the bib pocket stands in when the big one comes off.
38. Chocolate Chip Cookie Costume

Skip Mouse and be the cookie that starts it all. A tan sweatshirt and joggers, brown sneakers and a round padded cookie tunic over the top. Put dark brown felt chips on both sides, because people see your back as often as your front. A tan beanie dotted with small brown circles and warm neutral blush finish the head, and brown gloves continue the colour without stopping you using your hands. Keep the tunic flexible and narrow enough to sit in. Carry a small gray mouse plush or a milk cup so nobody mistakes you for a generic biscuit, and pair up with a friend in the Mouse overalls if you can.
39. Glass Of Milk Costume

The glass of milk is a white long-sleeve top, white pants and white sneakers under a cylindrical fabric tunic. A pale blue rim at the top and a gray band near the upper edge suggest glass, and a red-and-white striped headband becomes the straw while leaving the face fully visible. Fresh makeup or rosy cheeks is plenty. Carry a plush cookie or a gray mouse toy for the story link. I build the tunic from fabric over lightweight hoops, rather like a soft lampshade, so it keeps its shape but squashes when you sit. On its own it can pass for any glass of milk; standing next to a Mouse, it clicks straight away.
40. Storybook Cover If You Give A Mouse A Cookie Costume

Wear the book itself. Neutral clothes and sneakers go under a large rectangular foam-board panel painted as a storybook cover. Draw your own gray mouse in blue overalls holding a cookie rather than photocopying the printed cover, and the hand-painted version looks more like a costume anyway. Cut a generous face opening near the top so vision stays clear, add padded shoulder straps, and edge every side with tape or felt so it doesn't scratch arms. Gray ears, a pink nose and whiskers above the panel bring the drawn Mouse to life, and a small cookie purse finishes it. In a book parade, nobody has to guess which story you came from.
41. Baker Mouse Costume

Picture Mouse halfway through another batch of cookies. A white baker's apron goes over denim overalls and a gray shirt, while the ears, pink nose, whiskers, gray tail and sneakers stay as they are. A soft white chef hat sits behind or between the ears; I check it in a mirror, because a tall hat worn in front swallows the ears completely. Decorate the apron pocket with felt chips and tuck a plush cookie inside. Bring a light mixing bowl and wooden spoon for photos only, since both are a nuisance while walking. Brown-and-white striped socks under cuffed overalls add a bakery hint for a school cooking theme or a family party.
42. Rainy Day Mouse Costume

If rain is forecast, I start from clothes made for it: a gray hooded sweatshirt, blue waterproof overalls and short gray rain boots. Attach felt ears to the hood so they stay put under a clear rain hat or umbrella. Use water-resistant makeup for the nose and whiskers, or a simple fabric mouse mask if rain would smudge it. A short tail won't trail through puddles. Put the cookie in a clear pouch, or make it from foam covered in sealed paper, since plain cardboard goes floppy in drizzle. A pale blue cup clips to the bib. It's the one I'd choose for an outdoor parade, a pumpkin patch or a damp walk round the neighbourhood.
43. Sporty If You Give A Mouse A Cookie Costume

This is Mouse for someone who'll be moving all evening. Stretch denim overalls, a moisture-wicking gray shirt and supportive gray-and-white sneakers. A soft elastic headband holds lightweight ears without sliding during walking or dancing. Long hair goes into a high ponytail, then a pink nose, short whiskers and a little colour on the cheeks. Fix a small tail close to the waistband so it doesn't slap the legs. Swap the bulky cookie sign for a tan belt bag decorated with dark brown felt chips, and slot a reusable cup into the side pocket for the milk. Both hands stay free for a long parade route.
44. Glam If You Give A Mouse A Cookie Costume

For a dressier party, dark denim overalls go over a shimmering silver-gray top, with metallic gray flats or block-heel ankle boots you can actually stand in for hours. Add a velvet ear headband and wear the hair in loose waves or a smooth ponytail. For makeup, silver eyeshadow, rosy blush, a pink nose and precise black whiskers. Black liquid liner gives the sharpest whiskers but can smudge on warm skin, so I press a little translucent powder over them once they're dry. A gray satin tail adds a touch of sheen at the back. Carry a structured round cookie purse in tan fabric with dark brown appliqués, and keep jewellery to small silver studs so nothing competes with the ears. Every character clue is still there, just dressed for an adult party or a themed dinner.
45. Last Minute If You Give A Mouse A Cookie Costume

Short on time, raid your closet: denim overalls, a gray tee and neutral sneakers. Cut ears from gray paper circles, fold a tab at the base of each and tape them to a plain headband. Washable makeup does the nose and whiskers. Twist a gray scarf or fabric strip into a tail and secure it inside the back of the overalls. Cut the cookie from a shipping box, colour it tan and glue or tape on brown paper chips, then carry it under one arm or tuck a smaller one into the bib pocket. Paper ears tear once they get damp, so this is the version for an indoor school or work event.
Whiskers for Kids Who Won't Sit Still for Face Paint
Most of these looks need only a nose and six whiskers, which is about as gentle as face paint gets. Even so, I test the paint on the inside of the wrist the night before, and I only use products made for skin, never craft paint.
- A soft brown or black eyeliner pencil is quicker than a brush and far easier on a wriggly child. Three short strokes per cheek, drawn outward from the nose.
- Dab the nose with a cream colour, then press a little loose powder over it. It lasts longer and transfers less onto collars and hoods.
- For a child who refuses anything on their face, stitch felt whiskers onto a cap, or glue them to a small felt nose that clips onto the headband.
- Take it all off with a gentle cleanser or baby oil on a cotton pad before bed. Paint left on overnight ends up on the pillowcase.
Saving the Pieces for Next Book Week
Book week comes round every year, and most of this costume is ordinary clothing that goes straight back into the wardrobe. Store the ears and felt cookies flat in a zip bag so the ears don't get crushed out of shape in a drawer. Cardboard cookies rarely survive a year in a cupboard, but foam ones do. When a child outgrows the overalls, the ears, tail and cookie pass straight down to a younger sibling with no changes at all.
Overalls and a Cookie Go a Long Way
Every Mouse on this list comes back to the same few pieces: denim overalls, a gray or brown base, round ears, whiskers, a tail, shoes the wearer can walk in, and a big chocolate chip cookie. The rest is adjusting for who's wearing it. Little ones get soft fabric props, adults get cookie bags and foam panels, and everyone gets a quick check of the weather, the school's costume rules and the wearer's own comfort before anything is bought. Get the overalls and the cookie right, and people will name the book before you've said a word.
























