ya know I've been thinkin about something along those lines myself,
I had a guy in a car pull straight off the curb and do a u-turn right out in front of me juz the other day , if i hadn't of swerved big time i woulda got cliped,It was all i could do to avoid him, and the whole time he was talking to someone in the passanger seat. [smiley=furious.gif].
what i was thinkin would be a really nice is a chrome plated ball pein hammer, juz small enough to mount in a clean place and have easily accessable. perfect for popping out a side window or a side view mirror..I got the idea from one of jessie james bikes
http://www.flatlandforge.com/Custom%20Design.htm
http://www.hammersource.com/mbp.html