This is a rare horn sound effect used by Filmation and Horta-Mahana (the post audio service used by Filmation for much of its life), its earliest usage being in the Tom and Jerry Comedy Show episode "Farewell, Sweet Mouse." It should not be confused with Cipha Sounds Air Horn.
- Dorothy and the Wizard of Oz (Heard in "Everything Coming Up Poppies".)
- Harvey Girls Forever!
- Rocko's Modern Life (Heard twice in "Born to Spawn.")
- The Tom and Jerry Comedy Show (Heard once in "Farewell, Sweet Mouse.")
- SpongeBob SquarePants (Heard 3 times in "Sailor Mouth.")
- Cinderella Express (Heard differently as a train horn.)
- The New Ren And Stimpy Show (Heard in You Went Right Into FLY Trap When his eye pops when his Visto account expired)