Does your girl love all things mythical? She’ll adore our girls unicorn costumes! Pink, white, sparkly and even rainbow unicorns roam this magical kingdom. Discover toddler girl unicorn costumes, baby unicorns and unicorn costumes for older girls in an array of styles, like fun unicorn onesies, ride-on unicorn costumes and even a unicorn cat costume! Whatever type of mythical horse she wants to go as, she’ll find a costume to suit her. Don’t forget to add essentials like unicorn horns, makeup and accessories to complete your magical look.