What happens when you use neodimium magnets in an ingenious way? You can fool people that you have created a perpetuum mobile. And, darn it, it looks almost too good to be true. They attached small magnets on the side of a cylinder on predefined lines and then used another magnet put on top to make it rotate.
I will have to buy some magnets and play with them. Maybe I’ll come up with such toy too 😀