You'll hit the nail on the head with this Hammerhead Shark Kigurumi! 

Fits Men and Women, One Size. Made of high-quality, soft, polyester fleece.

"Kigurumi" comes from the Japanese word: "kiru" (to wear) and "nuigurumi" (stuffed toy). It's like wearing a stuffed animal costume! Don't be fooled by cheap, imitation knock offs, these are the original ones they sell in Japan.

Official Sazac Kigurumi, designed in Japan.