Pay homage to the Pilgrims' 1620 voyage with your own (albeit drier, shorter, and less treacherous!) crossing -- of the living room.
First, pick one person to represent the New World, and have her stand on a chair at one end of the room. Next, choose someone to be the Mayflower; have him stand blindfolded at the other end of the room. Everyone else plays "rocks," standing, sitting, or lying on the floor in random spots between the two. The New World calls out directions to guide the ship (who can't talk or peek) safely across the rocky sea to its final harbor: the chair upon which the New World stands.