Heres how I will use my air cannon when I buy it. I will build a civil war cannon prop, man it with a cannon crew of buckys in civil war uniforms. I will place it off the trail in the woods, the air cannon will be off to one side hidden. When people walk by the air cannon will discharge with a loud BOOM, smoke will come out of the cannon prop and the air will rush by them. It will be so cool, I'm thinking of getting the super knee buckler from Evillutions. Let us know when you set of your cannon.