This video tutorial in Hobbies & Toys category will show you how to build a magic rollback can. For this you will need a can with lid, rubber band, weight, tape, sticks and scissors. Make a hole in the center of the lid of the can and also on the bottom of the can. Attach the rubber band to the weight with the tape as shown in the video. Pass one end of the rubber band from inside the can through the hole in the bottom of the can and put a stick to hold it in place. Pass the other end of the rubber band through the hole in the lid, close the lid and put a stick through the loop of the rubber band. Your rollback can is ready. Roll it forward and it will roll back towards you.