Do this for your son and he with the great pleasure will come to her and hang my towel. Because the hanger is this one with a secret. There are no hooks, arms-shoulders, and bring him a towel — and it hangs, and without any loops is kept so tight—you can’t steal. And then pulled — easily removed.
The whole mystery — in the original design, based on shamozai-mania. In a wooden plate-the base is made wedge-shaped groove for the ball, when moving down and presses the towel to slip the strap-limiter; and it is necessary to pull up and the ball goes into the groove, freeing the clamp.
The dimensions of the parts will depend on the available diameter of the ball; if taken easy, ping-pong table, fill it with sand.