More to explore:
Halloween Hat Pack, fleece hats with horns, ears, and dragon plates perfect for kids (but comes in adult sizes too!): Free Pattern and video tutorial.
Squirrel Costume by AliciaMarieCreate on Etsy
how to make a squirrel costume
Best squirrel costume ever!!!
Tracy's Treasury: Fleece Hat with Ear Flaps - Tutorial and Printable Pattern!
Grey squirrel costume