Star Butterfly Costume
Channel your inner Mewni princess with this magical, colorful cosplay look.
Star Butterfly from Disney's 'Star vs. the Forces of Evil' is a favorite for cosplayers who love her energetic, rebellious, and magical style. Her signature look features a sea green dress with a cute octopus decal, striped tights, and her iconic magical wand. This costume is perfect for anyone looking to bring a bright, whimsical, and fun-loving character to life.
- Difficulty
- Medium
- Time
- ~45 min
- Budget
- $35–80
Try it on
See yourself as Star Butterfly
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
One render, $1. No account needed — if it fails you're not charged. Pricing.
Your photo is sent to Google's Gemini API to make the render and isn't used for training. Renders are AI-generated and labelled.
Want a different costume on this photo, or a whole group in costume? Open the Try-On Studio.
What you need for a Star Butterfly costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Star Butterfly costume — one box instead of 7 pieces.
Sea green dress
A short-sleeved, A-line sea green dress with a white collar and white lace trim along the hem.
DIY: Add a white Peter Pan collar and white lace trim to a plain mint or sea green dress.
Octopus patch
A light pink cartoon octopus decal or patch to place on the front of the dress.
DIY: Cut the shape out of pink felt and fabric-glue or sew it to the chest of the dress.
Magenta and orange striped tights
Full-length, horizontally striped stockings in bright magenta and orange.
DIY: Use fabric markers to draw orange stripes onto solid magenta tights.
Devil horn headband
A simple red headband featuring two small, upright red devil horns.
DIY: Sculpt small horns out of red polymer clay or felt and hot-glue them to a red headband.
Magical wand
A toy wand featuring a blue handle, a yellow star center with small blue wings, and a pink crown on top.
DIY: Craft the wand using a wooden dowel, craft foam, polymer clay, and acrylic paint.
Star-shaped crossbody bag
A small, bright yellow crossbody purse shaped like a star with a simple face.
DIY: Cut two star shapes out of yellow felt, sew the edges together leaving an opening, and attach a strap.
Magenta boots
Knee-high magenta or dark pink boots, ideally featuring small black rhino-like horns on the toes.
DIY: Wear solid magenta rain boots and attach small white or black felt triangles to the toes.
Rather not assemble it? See ready-made Star Butterfly costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the magenta and orange striped tights.
- 2
Slip on the sea green dress, ensuring the white collar is neatly folded down and the pink octopus patch is centered on the chest.
- 3
Pull on the knee-high magenta boots.
- 4
Style your hair or wig into long, straight blonde locks with straight-across bangs.
- 5
Place the red devil horn headband on your head, positioning it just behind your bangs.
- 6
Sling the yellow star-shaped crossbody bag over your shoulder.
- 7
Hold the magical star wand in your hand to complete the look.
Makeup & hair
Style your hair into long, bright blonde locks with straight-across bangs that frame your face. For makeup, apply light blue heart shapes on both cheeks using face paint or eyeliner, keep the rest of the makeup minimal, and add a swipe of pink lip gloss.
Star Butterfly for couples, groups, kids & more
- couples
- Pair up with Marco Diaz wearing a red hoodie, dark gray jeans, and brown skate shoes.
- group
- Add Ludo, Pony Head, or Tom Lucitor to create a full Star vs. the Forces of Evil group.
- kids
- Use a comfortable cotton dress version with printed details and soft felt accessories for safety.
- Plus size
- Look for an empire-waist or skater-style sea green dress for a comfortable, flared fit.
- pet
- Dress your pet in a simple turquoise dog tee with a small pink octopus print.
Tips
- If you are using a wig, secure it with a wig cap and bobby pins so the headband doesn't slip off.
- For outdoor events, wear comfortable insoles inside the knee-high boots as you will likely be walking a lot.
- Practice your best energetic, wide-eyed poses for photos while holding the wand pointing forward.
Star Butterfly costume FAQ
- What does Star Butterfly's wand look like?
- Her wand is light blue with a yellow star in the center, small white wings on the sides, and a pink crown on top.
- How do you make Star Butterfly's cheek marks?
- You can easily draw the pinkish-blue hearts on your cheeks using cosmetic-grade face paint or colored eyeliner pencils.
- What color is Star Butterfly's dress?
- Her most iconic dress is a sea green (or mint green) short-sleeved dress with a white collar and a pink octopus design on the front.
Did you know? Star Butterfly's design was originally inspired by creator Daron Nefcy's own childhood love for Sailor Moon and magical girl anime.