Jimmy MacDonald created this effect for Canine Caddy, a Mickey Mouse cartoon released on May 30, 1941, in which Mickey caddies for Minnie while Pluto causes chaos on the golf course. MacDonald was Disney's pioneering sound effects artist, known for building cartoon noises from everyday objects, and the aluminum bonks came from striking metal to exaggerate a physical gag. The clip later circulated among classic cartoon sound fans, and editors still reuse it because its bright, old-school Disney timing reads instantly as comedy.