Someone saaaay, slingshots? Very cool, I live on 6 1/2 acres and can fool around with them without worrying about harming anyone. I use this
Trumark that I got at my local Ace hardware for $8.00 or so. It has a fold up arm brace and stores ammo in the hollow handle. I use 5/16" steel shot and the standard bands, you can be surprisingly accurate with very little practice.
I also have an old Saunders Double Eagle, which has dual bands. They discontinued that for awhile but have started making them again .....
here. Unfortunately, the new bands do not fit my older model. But hey, that's ok, they are cheap enough I could just buy a new one.
Your bands will last longer if not left in direct sunlight or kept where it's really hot like the backseat of a car on sunny days.
Mike