This sound effect can be found on Warner Bros. Sound Effects Library, which was made by Sound Ideas. It includes sound effects such as Sound Ideas, CARTOON, BOUNCE - FAST, VARIED JEWS HARP BOUNCING, Sound Ideas, CARTOON, BONK - SINGLE HEAD BONK (but low-pitched), WB CARTOON, THUNK - SMALL THUNK, Sound Ideas, CARTOON, HORN - SHORT HORN TOOT, MEDIUM, etc.
- Sound Ideas, CARTOON - ZANY REACTION (faster version)
- Fanboy and Chum Chum
- Harvey Street Kids
- Pinky Dinky Doo (Heard once in a low-pitch in "Pinky and the Ice Cream Babies.")