Floor Collection was an experiment in play and collaborative rule making without any discussion or interaction among the players. I pinned things I found on the floor of a classroom to the room's bulletin board. I added to the collection over the course of several weeks. Others began to add to it as well, without any prompt or discussion. Over time, the nature of things pinned began to evolve. I am interested in initiating unannounced collaborations in which the participants gradually learn/co-create the rules of the game.