What’s cooler than a shot glass made of ice? Fill Shooters Shot Glass with water or your favorite juice, freeze, and then pop out four fully-formed frozen shot glasses. A great way to add a little nip to your favorite sip! Make your own frozen shot glasses with a refillable, reusable mold made of pure food-grade silicone rubber. Just fill the ice tray , which measures five inches square by three inches deep, with water or your favorite juice. Freeze, then twist the tray to remove four perfectly shaped ice glasses. Fill the frozen glasses with your favorite liquor or beverage of choice and enjoy.