Silicone Pumpkin Ice Cube Tray This pumpkin ice cube tray is the perfect accessory for a Halloween party, or any fall party. Easy to use, just fill with water or juice and freeze. After they freeze, pop them out and youll have pumpkin ice cubes. he soft silicone construction also makes it ideal for making Jell-O treats, chocolates, candy and more. Silicone construction makes ice cube removal easy. Tray measures 9 x 4.5 inches, and makes 10 pumpkin ice cubes.