Here is a gorgeous marble machine that you can operate by rotating the hand crank. This Marbles Automata is made of beech wood, finished with hazelnut stain. Once you rotate the handle, the marbles go up to the highest point and then fall down.
The parts that move the marbles are removable. The entire thing measures 31cm long, 30.5cm high, and 12.5cm wide. The below video shows it in action: