In many places the cup-and-ball [1] game was/is popular. It's incredible to think now about games that doesn't require batteries and USB ports. [1] https://en.

In many places the cup-and-ball [1] game was/is popular. It's incredible to think now about games that doesn't require batteries and USB ports. [1] https://en.wikipedia.org/wiki/Cup-and-ball https://en.wikipedia.org/wiki/Cup-and-ball