We actually have a new stinger (short on-demand audio clip like the Machen horn or HAYMAN!) on our soundboard now — a klaxon”dive” horn from a submarine which can be used to indicate a problem or something troubling. We’ve not used it yet. Which are your favorite stingers? Any suggestions?
On John Derbyshire's podcast he uses a few: example: some guy belly laughing uncontrollably (like the meme featuring the guys at the restaurant laughing in Goodfellas). Another one I've heard is a hand-held horn honking to indicate that the host just mentioned someone who's a clown. Another Derbyshire one is a lady screaming (imagine a blood-curdling scream from an old 1920s radio drama) - in response to terrifying, like more REs going to St. Louis or something.
https://www.youtube.com/watch?v=dNl4-w9ZrBs