Hippety Hopper - A baby kangaroo mistaken for a giant mouse first seen in the animated cartoon feature Hop, Look and Listen (1949). Created by cartoonist Chuck Jones, Hippety Hopper appeared in a number of Warner Brothers cartoon shorts (directed by Bob McKimson) including Hop, Look & Listen (1948), Hippety Hopper(1949); Pop ’Im Pop;  (1950); Who’s Kitten Who (1952); Hoppy Go Lucky (1952); Cats Aweigh (1953); Bell Hoppy (1954); Lighthouse Mouse (1955); Too Hop to Handle (1956); The Slap-Hoppy Mouse (1956); Mouse-taken Identity (1957); Hoppy Daze (1961); and Freudy Cat (1964).