Meh. I strapped a car horn to the front of my bike. This also allows you to see who is not wearing a seatbelt, since you can see which drivers leave a dent in their headliner when you honk at them.
How? What powers it?
I got one of those 72 to 12 volt converter boxes, and my bike has an entire 12v subsystem suitable for powering commodity automotive components. In addition to the horn, I have a working brake and tail light and turn signals. I could add whatever else, if I feel like it – subwoofer, neon underglow, disco ball, cigarette lighter, etc.
That sounds awesome, you should post pics!
a heavy object in a quickly usable position - metal lock on the handlebars is fine, a brick in one hand is better - works way better than these mostly victim-blaming “tips”, in my experience.
I can tell you from experience, riding one handed with a 36" pipe wrench over one shoulder also makes motorists give you a wide berth.
I only ever did it once because I had to transport the wrench, and that fucker was heavy.