we made checker boards out of pieces of paper and poster board, wrote an inspirational message/well wishing on the back, and then attached a baggy of erasers (playing pieces) to the board.
it was a pretty cute project, but those that got large boards had some confusion as to how to fill up the boards. we were trying to make them into tic-tac-toe boards but some of them looked weird, which was a good topic for conversation.
also, pretending to attempt to eat the paste is sometimes a good ice breaker if a pm isn't talking much