Grampy

Professor Grampy is an animated cartoon character appearing in the Betty Boop series of shorts produced by Max Fleischer and released by Paramount Pictures.

Grampy is an ever-cheerful and energetic senior citizen with a bald head and a white beard. His primary activities include singing, dancing and building Rube Goldberg-esque devices out of ordinary household items. When presented with an unexpected new problem, he will put on his thinking cap (a mortarboard with a lightbulb on top). In short order the lightbulb lights up and Grampy builds a new gadget to solve the problem.