[] Great stuff! Death by sledge hammer and death by saw sound cool for two of them. Death by brick? Golf club? Bench grinder? Maybe cow and frog can think up something else. These things must be punished for wasting your time and not making you any bottle money! ~Jim
A nice concrete wall with a target spray painted on it, would be good to try your three man slingshot(for water balloons) out on from about 100'. Or, use the same slingshot to see how high those things will go up, before falling to the hard parking lot beneath you.