A collection of 10, 20 or 30 objects are placed on a table and covered with a cloth. Have the players gather around. Remove the cloth for 30 seconds, then replace. Each player is given a pencil and paper to list as many objects as he or she can remember. A player scores one point for every object remembered, but a point is deducted for any object listed that was not actually there. The player who scores the most points wins.