I think that is a great idea! Plus, it would give those who have finished the game and are waiting on new worlds something different to try! Could be themed according to season (Maple leaf, acorn, pumpkin, guord, etc. for fall?), holiday (eggs of different colors, yellow chick, basket,bunny, etc. for Easter?) or just a whimsical idea (farm animals, magician's tools, fruits, etc.?) Sounds fun!