Ever since I was young, I always loved the old Ahooga horns.
Always wanted one.
No...unfortunately I wasn't able to get one off an old car,
so I bought one of the novelty ones.
It's still pretty cool though.
I used a relay to rig it up to a LED Momentary Button,
and used the cigarette lighter hole with a rubber grommet for mounting so that I wouldn't have to drill any new ones in the dash.
It came out pretty slick.
I didn't do a write up on it just because I'm not sure that many people would like to do this, but just thought I would share.
If anyone actually does want more info, let me know.