User blog comment:HTF1234/Happy Tree Friends Concept Arts, Early Designs, and Other Early Stuff/@comment-762531-20121125175516/@comment-4241330-20121125183924

Pranky and Crazy. Freaky now that you mention it. I made up Pranky, but I'm not sure whether Pattyp999 (creator of Crazy) got the idea from here or made it up.