Ringo is a young design studio based in Warsaw in Poland. They make the most beautiful cardboard toys that I know of. I love the colours and the graphics for each category that have designed: Paper Town 1, 2 and 3 and how cute is the new The Animals set!
I also love the fact that it requires some imagination and patience to fold and create each piece and it can be folded after playing to store or take away in a bag to a friend's house.
Paper Town 1:
Paper Town 3: