There's a whole secret squirrel war going on. It's the American grey squirrel against the Canadian black squirrel against the English red squirrel. It's madness, sheer madness. There's a whole secret world of squirrel wars that we barely even know about. The Adult Squirrel Costume, while being of an American grey squirrel, eschews the coming squirrel war in favor of light-hearted, Halloween-based fun. And that's all a good rodent costume should be. The Adult Squirrel Costume even comes with a giant acorn for saving for winter (I can only assume that it is from a giant oak tree).