Hozehead lobs Cavity Creating Cola

Sorry I don't have any digital climbing photos yet, this picture is from my camcorder. Basically, this is my third pneumatic cannon I have made, and as the name suggests it uses pressurized air to launch projectiles of various sizes monumental distances. Here I'm lobbing a can of pop. My long-term goal is to break the sound barrier by projecting a cow or a tub full of swine of estimated mass a hippo-and-a-half (Yummmmmmmmm, swine). Of course, these will be flight capable livestock with wings, rocket powered appendages, or capes; so there is no worry about them getting puddingasized on the landing.