Hacienda Post Ping is a custom sound effect created by Hacienda Post. In addition, it might've been rumored or rooted from either Hanna-Barbera sound effect or any of the sound effect libraries like the Series 1000 Sound Effects Library. It really needs a verifications.
- Camp Lazlo (Heard once in "Penny for Your Dung".)
- Dexter's Laboratory
- The Get-Along Gang? (A very similar-sounding or nearly identical to this sound is heard in "Them's the Brakes".)
- H2O: Just Add Water
- Harvey Girls Forever!
- My Life as a Teenage Robot
- The New Adventures of Winnie the Pooh (Heard once in "A Pooh Day Afternoon"?)
- Out of Jimmy's Head
- SpongeBob SquarePants