An RPG for young kids. Illustrated to look like a fairy tales book but containing basic, simple rules to introduce children to the idea of using dice to determine success or failure of a task (as well as a diceless system for those who want it). It would take place in some pretty simple setting like say.. the land of dreams (so that "death", should it exist as a concept in the game is simply the child waking up. To put it another way, sufficiently scary/dangerous situations will wake the PC instead of killing them). The kids play mighty wizards, swordsmen, princesses, good witches and whatnot.
Something bright and happy I think.