There is a guy on line that has free plans for a plastic shredder. The files are made so that you can hand them to someone with a laser cutter to cut all the pieces out. I forget the guys name but he has a youtube channel and demonstrates the shredder. Its a beast. Unfortunately, I think it would costs about $400 to $500 to make with the high torque motor. I thought about it for a bit but decided I couldn't invest that much into it with it only having a single use.