So Much Fun It's Scary!®

Unicorn & Mermaid Halloween Costumes

Adult Mermaid Costume
Toddler Winged Unicorn Costume
Adult Mermaid Mistress Costume - The Signature Collection
Online Only

We know how much fun it is to shop for the perfect Halloween costume, and that's why we've broken ours out into characters! You'll be able to find the perfect Halloween costume right here at Spirit Halloween!

Unicorn Halloween Costumes

Become a mythical creature this Halloween! When you dress up in a unicorn costume, you’ll make fantasy a reality while you prance through the streets and travel from all the costume parties! The coolest part about being a unicorn for Halloween is that you can create your own look, and be exactly what you want to be! Rock a rainbow wig and an iridescent horn, or simply go with an all-white wardrobe! Whichever you decide, your unicorn costume is sure to bring magic to everyone around.

Mermaid Halloween Costumes

Bring under-the-sea adventures to dry land when you dress up in a mermaid costume this Halloween! You’ll let everyone know just how much of a water princess you are when you show off your scales and seashells! Being a mermaid is fun! You can experiment with all different types of makeup, wigs and more! Take full creative control and create your very own, very original mermaid costume for you next Halloween outing!

We’ve got everything you need to make Halloween 2018 magical right here at Spirit Halloween! Shop our Adult unicorn costumes and our kid’s unicorn costumes for the perfect mommy and me collaboration. Or, create an ocean vibe with women’s mermaid costumes and girl’s mermaid costumes. Whichever you decide, we guarantee it’ll be majestic!