Originally posted by SallieW
I've thought for years about getting one of those "canned" air horns, the ones people used to bring to football games. I figured it would fit into a water bottle cage.... But yours is way cooler!
Ya, Sally, as AndersK points out, the Air Zound is great. It is similar to the air canister horn that you mentioned, but it recharges with a bicycle air pump. It has a convenient button that mounts on the handlebars and the air canister mounts to a standard water bottle cage.
Also see
http://www.nashbar.com/results.cfm
I have one and I love it.
Do a search for Air Zound on the BikeForums.Com. There was a thread with reviews that you might find interesting.
Nashbar probably still has them on sale at $20.00 each. Put it on your Christmas list. I did last year and got one for Christmas