A very simple but baffling little trick!
The Chinese coin has a hole in the middle. When threaded on a piece of elastic, it will climb up the slope.
But how can a coin climb against gravity? And up such a steep slope? Is it anything to do with Feng Shui?
Could this be a good way to get free drinks, by having a bet with someone that you can make a coin go uphill?
Items in the toy collection are not for sale.