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Fantasy Costume Ideas for Kids

Fairies with wings, unicorns with horns, and dragons with scales — Fantasy Day is the magical theme where a tutu and a wand turn any kid into a fairy tale character.

Top Picks for Fantasy

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Fantasy / Fairy Tale Day is the spirit week theme where anything magical goes. Fairies, unicorns, dragons, knights, princesses, wizards, elves, and mermaids are all fair game. If it belongs in a storybook or a fantasy movie, it counts. The theme overlaps with Medieval Day, Storybook Day, and Disney Day, but the key difference is that Fantasy Day is broader — it includes mythical creatures like unicorns and dragons that don't belong to specific stories. A kid in a unicorn horn headband is perfectly on-theme even though they're not a specific character. For parents, the good news is that fairy wings, unicorn horns, and magic wands are some of the cheapest costume accessories on Amazon. A fairy wing and wand set runs $5-8 and covers the theme completely. A unicorn headband with a horn is $3-5. These are the "one accessory over regular clothes" costumes that make spirit week easy.

What to Wear

Fairy is the most popular choice: fairy wings (butterfly or sparkly tulle), a tutu, and a magic wand. The wings do all the work — strap them on over any outfit and the costume is clear. A pink or purple outfit underneath ties the look together but isn't required. Unicorn is the runner-up: a unicorn horn headband with ears, a rainbow tutu or rainbow shirt, and sparkly accessories. Unicorn costumes range from a simple horn headband ($3-5) to a full unicorn onesie ($18-25). The headband alone over a white or rainbow outfit works perfectly. Dragon is the cool pick: a green or red outfit with cardboard wings attached to the back and a headband with felt horns. Dragon hoodies with spikes down the back are available on Amazon ($15-20) and are school-day comfortable. Knight: same outfit as Medieval Day — a tunic (oversized shirt belted with rope), a foam sword, and a cardboard shield. See the Medieval Day guide for detailed instructions. Princess: a long dress, a tiara, and a wand. Any dress-up gown from the costume box at home works. See the Medieval Day guide for overlap. Wizard: a dark bathrobe, a pointed hat from construction paper, and a stick wand. The quickest DIY fantasy costume from items at home. The one-accessory approach works for every fantasy character: fairy wings, unicorn horn, dragon horns, a crown, or a wand — pick one and add it to a matching-color outfit.

Budget Breakdown

Under $10

Fairy wings ($4-7) or a unicorn horn headband ($3-5) over regular clothes. A magic wand from a stick wrapped in ribbon is free. The single-accessory approach makes Fantasy Day one of the cheapest themes.

Under $25

A fairy wing and wand set with a tutu ($12-20) or a unicorn onesie ($18-25). These are the complete-look options that make for great photos and get reused for dress-up play at home.

Under $50

Full fantasy costume: a detailed fairy outfit with wings, tutu, wand, and flower crown, or a dragon costume with hood, wings, and tail. These are Halloween-grade costumes that look spectacular.

DIY & Last-Minute Ideas

Fantasy costumes are some of the most fun to DIY because the materials are simple and the results are magical. DIY Fairy Wings: bend a wire hanger into a wing shape (two connected ovals), stretch a stocking or tights over the frame, and decorate with glitter and ribbon. Attach to the back of a shirt with safety pins. Or cut wing shapes from cardboard, cover in aluminum foil, and attach with string shoulder straps. DIY Unicorn Horn: roll a piece of gold or white cardstock into a cone shape, tape it closed, and attach it to a headband with hot glue. Wrap the cone in ribbon spiraling from base to tip for the classic unicorn horn twist. Add felt ears to the headband. DIY Magic Wand: a stick from the yard wrapped in ribbon with a cardboard star glued to the top and covered in glitter. Or a wooden dowel from the craft store painted gold or silver. Total cost: near zero. DIY Dragon: attach triangular cardboard spikes down the back of a green or red hoodie with hot glue. Cut wing shapes from cardboard and attach to the shoulders. Make horns from toilet paper tubes covered in colored paper and attached to a headband.

Pro Tips for Parents

  • 1Fairy wings are the most versatile fantasy accessory — they work for fairy, butterfly, angel, and pixie costumes. Buy once, use for multiple themes and Halloween.
  • 2A unicorn horn headband is $3-5 and instantly communicates the theme over any outfit. It's the best value-for-effort ratio in all of Fantasy Day.
  • 3This theme overlaps heavily with Medieval Day, Storybook Day, and Disney Day. If your kid has a costume from any of those themes, it works here too.
  • 4The wizard costume (bathrobe + paper hat + stick wand) is the fastest zero-purchase DIY and works for Fantasy Day, Harry Potter Day, and Medieval Day.
  • 5Let your kid pick their creature — the excitement of choosing their own fairy tale character makes them more likely to commit to wearing the costume all day.

Frequently Asked Questions

Is this the same as Storybook Day?
Similar but broader. Storybook Day focuses on characters from specific books. Fantasy Day includes those plus mythical creatures (unicorns, dragons, fairies) that aren't tied to any particular story. A unicorn works for Fantasy Day but might not fit Storybook Day depending on your school's interpretation.
Can my kid be a superhero for Fantasy Day?
It depends on your school's interpretation. Superheroes are fictional but not traditionally 'fantasy' in the fairy-tale sense. When in doubt, check with the teacher. If superheroes are excluded, redirect to a wizard, dragon, or knight — all are easy pivots.
What's the easiest fantasy costume for a boy?
A wizard (dark bathrobe + paper hat + stick wand) is the fastest to assemble from home. A knight (t-shirt tunic + foam sword + cardboard shield) is the most popular purchased option. Both are easy and gender-affirming.

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