Mermaids, mermen, sirens, and sirenians are all pretty great and it only makes sense that they've got azure wig. The Girl's Blue Mermaid Wig is for anyone that is a fan of Ariel or the Little Mermaid or any other mermaid-related works of fiction. And who wouldn't be? If you want to finish off that siren outfit you've been working on this Halloween, then look no further than the Girl's Blue Mermaid Wig. The Girls Blue Mermaid Wig is for any gal that's a fan of mermaids, sirens, or the lost city of Atlantis. It's the perfect accessory to deck out any Halloween costume.