Hi, I am trying to find a small bicycle air horn. They are very small, no bigger than one of those small bike bells, and they look similar. they have a rubber dome that you press with your thumb. As you can guess this pushes a small amount of air out of the part that makes the noise (plastic body) and as the dome bounces back it sucks a bit of air back in and makes a bit less noise. I bought one at a bike shop about 20 yrs ago but I can't see them anywhere on the internet. I remember watching the Tour de France on tv years ago and when the television station would go to or come back from a commercial break they would play the sound affect of one of these horns. I would appreciate it if someone could tell me where I can buy one. Thanks.
