Bugs Bunny that another proposed name for the character was "Happy Rabbit." In the actual cartoons and publicity, however, the name "Happy" only seems to have been used in reference to Bugs Hardaway. In "Hare-um Scare-um", a newspaper headline reads, "Happy Hardaway." Animation historian David Gerstein disputes that "Happy Rabbit" was ever used as an official name, believing that the only usage of the term was from Mel Blanc himself in humorous and fanciful tales he told about the character's development in the 1970s and 1980s; the name "Bugs Bunny" was used as early as August 1939, in the Motion Picture Herald,
Development of Bugs Bunny mouth, and his ears were changed slightly as well. It is worth noting, however, that "Patient Porky" (September 14, 1940) featured a cameo by this prototype Bugs Bunny. The cartoon was so successful that WB decided to keep him on as a recurring character, eventually becoming the studio's most popular cartoon character. The character's name, previously only used on model sheets, became the official all-purpose name as well, with one modification: the apostrophe was dropped from his first name (now pronounced "bugs" rather than "bugs-es"). A title card saying "featuring Bugs Bunny" was slapped onto "Elmer's Pet Rabbit" after initial