Unicorn Costume
Bring magic to life with a vibrant, whimsical unicorn look.
The unicorn is a legendary magical creature loved for its whimsical charm and signature spiraling horn. People choose this costume for its vibrant, customizable color palette and playful, fantasy-inspired aesthetic. This guide covers how to assemble a classic rainbow unicorn look using a white base, colorful tulle, and a gold horn.
- Difficulty
- Easy
- Time
- ~20 min
- Budget
- $15–50
Try it on
See yourself as Unicorn
One clear photo of yourself; we render you in this costume — face untouched, full body, about 20 seconds.
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What you need for a Unicorn costume
Short on time? Buy it ready-made
Spirit Halloween sells the complete Unicorn costume — one box instead of 5 pieces.
White bodysuit or dress
A solid white long-sleeve bodysuit, tank top, or simple dress to serve as the clean base layer.
DIY: Use a plain white t-shirt and white leggings from your closet.
Unicorn horn headband
A headband featuring a metallic gold spiraling horn, often accented with faux flowers and white ears.
DIY: Roll gold glitter cardstock into a cone, stuff it with cotton, and hot glue it to a plain plastic headband.
Rainbow tutu skirt
A layered tulle skirt featuring vibrant or pastel rainbow colors with an elastic waistband.
DIY: Tie strips of pink, purple, blue, and yellow tulle onto an elastic band cut to your waist size.
Rainbow yarn tail
A long, flowing tail made of multi-colored yarn or tulle strips attached to a safety pin.
DIY: Gather long strands of colorful yarn, knot them at the top, and safety-pin them to the back of your skirt.
Sparkly shoes
Silver, gold, or pink glittery flats or sneakers to match the magical aesthetic.
DIY: Apply fabric glue to an old pair of canvas shoes and coat them in silver or pink craft glitter.
Rather not assemble it? See ready-made Unicorn costumes at Spirit Halloween ↗
How to put it together
- 1
Put on the white bodysuit, dress, or top and leggings as your clean base layer.
- 2
Step into the rainbow tulle tutu skirt, centering it comfortably at your waist.
- 3
Attach the rainbow tail to the back of the tutu waistband using a secure safety pin.
- 4
Place the unicorn horn headband on your head, positioning the horn centrally on your forehead.
- 5
Slip on your sparkly silver, gold, or pink shoes.
- 6
Apply pastel makeup and face glitter to complete the whimsical look.
Makeup & hair
Style your hair in loose waves, a high ponytail, or a braided crown. Apply pastel pink or purple eyeshadow and add cosmetic-grade face glitter or star decals along your cheekbones.
Unicorn for couples, groups, kids & more
- couples
- Pair a classic rainbow unicorn with a Pegasus, a wizard, or a colorful rainbow cloud costume.
- group
- Create a herd of unicorns in different color schemes, such as pastel rainbow, gothic black, and metallic gold.
- kids
- Use a comfortable white hooded sweatshirt with felt ears and a soft stuffed horn sewn onto the hood.
- Plus size
- A white A-line dress or a cozy fleece unicorn onesie offers a comfortable, flattering, and flexible fit.
- pet
- A simple adjustable headband with a soft plush horn and a matching pastel collar ruff.
More ways people search for this costume
The most-searched variations of “Unicorn costume”, and how this look adapts to each.
Unicorn dog costume
- A simple adjustable headband with a soft plush horn and a matching pastel collar ruff.
Tips
- If wearing a tutu outdoors in cold weather, layer white or pastel pink leggings underneath for warmth.
- Secure the headband with bobby pins behind the ears to keep it from slipping while walking or dancing.
- Use cosmetic-grade glitter and a skin-safe adhesive gel so it stays put and washes off easily.
Unicorn costume FAQ
- How do I make a DIY unicorn horn?
- Roll a piece of gold glitter cardstock or felt into a cone shape, stuff it lightly with cotton balls, and glue it onto a plain plastic headband.
- What should I wear under a sheer tutu?
- Wear opaque white leggings, bike shorts, or a solid white bodysuit underneath for full coverage.
- Can I make this costume without sewing?
- Yes, you can easily tie strips of colorful tulle around an elastic band to make a no-sew tutu and tail.
Did you know? Though popularized as a colorful modern fantasy creature, historical descriptions of unicorns date back to ancient Greek natural history, where they were described as real wild beasts.