So-Hi Marble game cutout from back of Post Cereal. Uploaded by Neato Coolville.
Nowadays toys get packaged with things (think Cracker Jack, McDonald's Happy Meals), but I really like the idea of packaging being turned into (packaged as?) a toy. It strikes me both as a retro form of upcycling and a lot more eco-friendly than manufacturing a bunch of little plastic doodads that inevitably get thrown away.
The designs for toys on packaging could be really resourceful sometimes. Most of them utilized only the small surface area of tagboard to design a whole spectrum of different types of toys and games, from simple masks to complex flying saucers.