"The Happy Reindeer," Dancer, Prancer and Nervous (Capitol)

This December 1959 record was a fairly sappy attempt to cash in on the Chipmunks; the song itself is even a fairly transparent rewrite of "The Chipmunk Song." Another Chippers cop came from The Nutty Squirrels, who did several singles in that style including 1960's "Please Don't Take My Tree For Christmas." UPDATE: The Nutty Squirrels had "Nutty Noel" on the same single. The group was created by jazzers Sascha Burland and Don Elliot and they recorded three albums. Extra info and sleeve scan courtesy of Fred Clemens. (No live link from the album cover; couldn't find a reliable source for any of the songs mentioned in this post.)