A while back I came up with what I call a piddle-paddle toy which is simply a paddle with a rubber ball tied to it by a string. You swing the paddle back and forth to bounce the ball on both sides of the paddle. Quite entertaining. Anyway, as I often do, I wanted to automate the toy with a motor. It doesn't have a microprocessor but it is mechanical in nature and carries out a complex movement. Built it mostly for it's entertainment value. Hope you are entertained.
This is a companion discussion topic for the original entry at https://community.robotshop.com/robots/show/piddle-paddle-machine