Not sure about availability around the world, but I would say Merkur: https://en.m.wikipedia.org/wiki/Merkur_(toy)
Fun fact: first line for creating contact lenses was build using this system.
Fun fact: first line for creating contact lenses was build using this system.
They have en e-shop (although quite poorly translated) and it looks like they are shipping within EU to US and to some other countries: https://eshop.merkurtoys.cz/
(I am not affiliated just used to like these things as a kid)