This one was harder then it looks. As it did not print good several times / was impossible to clean without braking, I gave the axis more play... Now it is a bit loose.The real trick is to print it standing, not laying.I did not color it with my nail-polish method yet, but as with the folding ruler, it should fix the increased play (and also take care of the rough edges).A future, larger version may include gears so one (instead of all hands) will rotate in the counter direction of the pendulum. Maybee I could even use the 1.5x3mm magnets to avoid the tiny axis. I noticed that the metalic nail polish actually contains metal parts and so it may work without additional parts. Sorry for the crude sketches.Print standing to be able to clean it (but it will warp the edges a bit).