If you like chess, but you need a new challenge or perhaps you’re just tired of the other player forever pondering his moves, this chess set will add a definite time constraint to the game. The Ice Speed Chess Set from ThinkGeek comes with two silicone molds that will make two complete sets of chess pieces. You can use juice or food coloring to make a dark and a light set (or perhaps grape and orange sets). You’ll need to supply your own waterproof chess board. If you don’t want to play chess, you can make some classy ice cubes for your drinks, or you can even make a custom chess set of milk and white chocolate as a perfect gift for the chess (or chocolate) loving friend. A set of molds is $9.99.