For inspiration, Sprice Machines is one of many Rube Goldberg-machine people. In your remixes, add a step. I recommend it to be caused by the object of the last step, but you can also set it to be a builder's challenge. STEPS: 1. Press space to open the book. 2. The ball is released after the page blocked its way. 3. The ball falls off the book at the edge of the table.
