Transform into a spectacular mermaid with this blue fairy-tale costume. The gown's awash in sequins (which look scaly and magical), organza ruffles and a fanciful glitter print on the bodice. Your blue fairytale mermaid should have lots of sparkly accessories, as well as a dramatic shell-collar cape that floats in the breeze. Polyester. Blue fairytale mermaid costume for girls is imported.