Wow, what a great picture of a chipmunk, Casey! And you say you're terrible at taking squirrel pictures! This one is really good! And you got so close!
Yeah, he's plastic. I found him in the Yosemite National Park Visitor Center and took this picture on the sly. I've had a few people start to compliment me on the excellent squirrel photo before they realize that there is something not quite squirrely about him. He was actually in a display with a selection of other adorable rodents, but I'll spare you the joy of those photos.