In this video, Danny Lipford will show you how to make a punching bag with trash found at a construction site. First, a circle of plywood is cut out about one foot in diameter (in this video, a bucket is traced in pencil over the plywood). This is for the base of the punching bag. A large piece of PVC pipe is used for the center of the punching bag, which carpet padding is wrapped around to makeup the main part of the bag. Finally, duct tape is wrapped around the whole thing. Out of these very simple scrap materials--only plywood, PVC pipe, carpet padding and duct tape--you can make your own punching bag at home.