This sound effect can be found on Hanna-Barbera Sound Effects Library, which was made by Sound Ideas. It includes a low pitched version of Laser Beam CRT050701 from Cartoon Trax Volume 1. Originally a Paramount Pictures sound initially designed for The War of the Worlds (1953).
- Dexter's Laboratory (Heard once in "Maternal Combat".)
- Wander Over Yonder (Heard once in "The Picnic" and "The Battle Royale".)