I've never wanted to wear a disgruntled jellyfish this badly. You'll probably agree once you see Obey My Brain's whimsical plush hat versions of your favorite sea creatures.
Shark Hat
Source: img2.etsystatic.com / via: etsy.com
Large Squid Hat
Source: img3.etsystatic.com / via: etsy.com
Jellyfish Hat
Source: img3.etsystatic.com / via: etsy.com
Octopus Hat
Source: img3.etsystatic.com / via: etsy.com