Star vs. the Forces of Evil Costume
Channel your inner Mewni princess with Star's signature sea green dress.
Star Butterfly from Star vs. the Forces of Evil is a favorite for cosplayers who love vibrant, magical girl aesthetics. Her signature look features a sea green dress, devil horn headband, and her iconic magical wand. This costume is perfect for fans of the animated series who want a fun, colorful, and highly recognizable outfit.
- Difficulty
- Medium
- Time
- ~45 min
- Budget
- $40–90
Try it on
See yourself as Star vs. the Forces of Evil
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 vs. the Forces of Evil costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Star vs. the Forces of Evil costume — one box instead of 6 pieces.
Sea green dress
A short-sleeved sea green dress featuring a white collar, white lace trim on the sleeves and hem, and a small pink squid print on the front.
DIY: Use a plain sea green dress, sew white lace to the hem, and paint a pink squid on the chest using fabric paint.
Devil horn headband
A simple red headband featuring two small, upright red devil horns.
DIY: Sculpt horns out of red polymer clay or felt and glue them to a plain red headband.
Striped leggings
Opaque tights or leggings with horizontal orange and purple stripes.
DIY: Use purple fabric markers to draw horizontal stripes onto a pair of orange leggings.
Magenta boots
Knee-high magenta or dark pink boots, ideally featuring small black rhino horns on the toes.
DIY: Wear pink rain boots and attach small horns made of black craft foam to the toes.
Star's magic wand
A toy wand featuring a blue handle, a gold crown on the bottom, and a yellow star inside a blue circle with white wings.
DIY: Craft the wand head out of cardboard and craft foam, paint it, and attach it to a painted wooden dowel.
Star-shaped bag
A small, yellow star-shaped crossbody purse with a simple face drawn on it.
DIY: Cut two star shapes out of yellow felt, sew the edges together leaving the top open, and attach a brown strap.
Rather not assemble it? See ready-made Star vs. the Forces of Evil costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the orange and purple striped leggings.
- 2
Slip on the sea green dress, ensuring the white collar is flat and neat.
- 3
Put on the knee-high magenta boots over the leggings.
- 4
Style your hair or put on a long blonde wig, then place the red devil horn headband on your head.
- 5
Apply the pink heart decals or face paint to your cheeks.
- 6
Sling the yellow star-shaped purse over your shoulder.
- 7
Carry the magic wand in your hand to complete the look.
Makeup & hair
Style your hair into long, bright blonde waves with straight bangs. Use pink face paint or cosmetic decals to apply small, solid pink hearts high on both cheeks.
Star vs. the Forces of Evil for couples, groups, kids & more
- couples
- Pair up with Marco Diaz wearing a red hoodie, dark grey jeans, and brown skate shoes.
- group
- Add Ludo, Pony Head, and Tom Lucitor for a full Mewni group cosplay.
- kids
- Use a comfortable cotton version of the dress and a soft felt headband for a kid-friendly outfit.
- Plus size
- Look for stretch-knit skater dresses in sea green to ensure a comfortable, flexible fit.
- pet
- Dress your pet in a simple blue collar with a small star charm.
Tips
- If you are styling a wig, use lightweight hairspray to keep the long blonde bangs out of your eyes.
- Opt for flat or low-heeled magenta boots if you plan on walking around a convention or trick-or-treating.
- Ensure the heart decals on your cheeks are symmetrical by using a stencil.
- Keep your wand secured to your wrist with a clear elastic band so you don't drop it during photos.
Star vs. the Forces of Evil costume FAQ
- What color is Star Butterfly's dress?
- Her signature dress is sea green (or mint green) with a white collar, white lace trim, and a pink squid print on the front.
- How do you make Star Butterfly's cheek hearts?
- You can easily draw them using a pink face paint crayon, or use pre-cut pink heart-shaped cosmetic stickers.
- What does Star Butterfly's wand look like?
- It is light blue with a yellow star inside a circular frame, white wings on the sides, and a small gold crown on the bottom of the handle.
Did you know? Star Butterfly's design was originally inspired by creator Daron Nefcy's own childhood love for magical girl anime like Sailor Moon.