Hammer

"Hammer" is a nickname given to George during his extremely brief membership in The Tough Customers in "The Boy with His Head in the Clouds". He had a theme song, although none of the singers were seen.

Lyrics
Who's the moose that's on the loose? Hammer. Hammer... Five feet tall from horns to caboose...  Hammer. Hammer... He's tough as nails... Never fails... He's real bad, he's never sad. Hammer... Don't mess with him!