
Muffin Costume
Channel your inner chaotic pup with this cozy Bluey-inspired look.
This guide focuses on Muffin Heeler, the hilariously energetic cousin from the hit animated series Bluey. Popular for toddler dress-up and family group themes, this look captures her signature light grey, white, and dark grey spotted coat. Whether you choose a cozy store-bought jumpsuit or a simple DIY fleece outfit, you'll be ready for playtime.
- Difficulty
- Easy
- Time
- ~20 min
- Budget
- $15–45
Try it on
See yourself as Muffin
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
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Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.

What you need for a Muffin costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Muffin costume — one box instead of 5 pieces.
Grey hooded jumpsuit or sweatshirt
A solid light grey fleece onesie or a matching hoodie and sweatpants set serves as the base.
DIY: Use an oversized light grey sweatshirt and matching sweatpants.
White felt sheets
Heavy-duty white craft felt to create Muffin's light belly patch.
DIY: An old white t-shirt cut into a large circle works perfectly.
Dark grey felt sheets
Dark grey felt for her distinctive spots and inner ear details.
DIY: Use a dark grey fabric marker to draw spots directly onto the fabric.
Fabric adhesive or double-sided tape
Temporary or permanent fabric glue to attach the felt patches to the jumpsuit.
DIY: Safety pins can secure the felt pieces for a quick, temporary option.
Grey pup tail
A simple stuffed grey felt tail attached to the back of the pants.
DIY: Stuff a grey sock with cotton balls or fabric scraps and safety pin it to the waist.
Rather not assemble it? See ready-made Muffin costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the light grey hooded jumpsuit or matching sweat suit set.
- 2
Cut a large oval out of the white felt and adhere it to the center chest of the sweatshirt to represent Muffin's belly.
- 3
Cut several irregular, rounded spot shapes out of the dark grey felt.
- 4
Attach the dark grey spots to the back, sides, and one side of the hood using fabric tape or safety pins.
- 5
Cut out two pointed triangle ear shapes from the remaining grey felt, add smaller dark grey triangles inside them, and attach them to the top of the hood.
- 6
Pin the stuffed grey tail to the back of the waistband.
Makeup & hair
If you aren't using a hood, style hair into two high space buns to mimic pup ears, and use black face paint to dot a small puppy nose on the tip of your nose.
Muffin for couples, groups, kids & more
- couples
- Pair up with Socks (her younger sister) or cousin Bluey for a perfect sibling duo.
- group
- Assemble the whole Heeler family including Bluey, Bingo, Uncle Stripe, and Aunt Trixie.
- kids
- Officially licensed fleece toddler jumpsuits featuring Muffin's face on the hood are widely available.
- Plus size
- A loose-fitting grey unisex fleece onesie provides a comfortable, oversized fit for all body types.
- pet
- A grey dog sweater with white felt spots attached can transform your pup into Muffin.
Tips
- Choose soft, breathable fleece or cotton fabrics to keep toddlers comfortable during trick-or-treating.
- Use double-sided fabric tape for felt pieces if you want to reuse the grey sweatshirt for everyday wear later.
- Carry a toy flamingo prop to reference Muffin's iconic 'Flamingo Queen' moment.
Muffin costume FAQ
- What color is Muffin from Bluey?
- Muffin is a Blue Heeler pup, but her character design features light grey fur with white patches on her belly and face, and dark grey spots.
- How do I make a DIY Muffin costume?
- Start with a light grey hoodie and sweatpants. Cut out and attach white felt for the belly and dark grey felt for her spots and ears.
- Is there an official Muffin costume?
- Yes, officially licensed toddler jumpsuits featuring Muffin's face on the hood and an attached tail are widely available online.
Did you know? Muffin is known for her hilarious, high-energy outbursts, with her sleep-deprived 'Flamingo Queen' episode becoming a massive fan-favorite meme across social media.