Odin Production demonstrates how to make an easy potato cannon. First, collect PVC piping parts. Then purchase PVC cement and primer. Build your potato cannon in a well ventilated area. Assemble the PVC piping with the PVC cement, applying the cement to the outside and corresponding inside of the piping. Assemble the combustion chamber and screw the cap on the end of it. Attach the combustion chamber to the PVC piping. Let the PVC cement dry. Drill holes in the sides of the combustion chamber and attach the fuses. Take your potato cannon outside to add the accelerant and objects to be blasted out of the contraption.