Dexterity game using one stash of Icehouse pieces per players, one additional large piece, and a CD. Place the additional large Icehouse piece in the middle of the table. Balance the disc on the it, silvery side up, so that the point of the pyramid goes through the hole in the center of the disc, and the disc is level. Take turns placing one piece on the disc. You may not touch the disc or any pieces other than the one you are playing. You should not move any of the pieces that have already been placed. Play all pieces upright. You may not place a piece so that it is resting on or covering any pieces that have already been played. You may not place a piece over the tip of the piece that supports the disc. If you place a piece and "the ice does not crack", play passes to the next player. "The ice cracks" if the edge of the disc touches the table, any piece on the disc touches the table, or any piece falls or slides off the disc onto the table. If you place a piece and the ice cracks, you have lost the round. Take back all of the pieces you have placed this round. Remove the other players' pieces from play.