The materials you need. The disk is cut from a piece of good quality plywood, about 7 mm or a quarter inch thick. The hole in the center is not needed, but you need two holes about 1.5 cm apart, equal distance from the center and equal distance from the side of the disc! You should ask a friendly carpenter or hobby person to make the disk for you. OR...you can cut several discs from cardboard and glue them together! We have also used two or three old cd-s glued together. Just try a bit of ecperimentation. The disc is about 10 cm across. The handles are just two pieces of dowel wood or any other piece of wood will do. Buttons can also be used, anything that you can pull on comfortably.