Happy 420 Day! If you aren’t a stoner, you might not be aware that today, April 20, is celebrated as 420 Day. You probably also won’t appreciate this Marijuana Leaf Ice Cube Tray. However, at GeekAlerts we enjoy celebrating all the interesting little holidays with cool, relevant products. Besides for making ice cubes in the shape of pot leaves, this tray can also be used for fun shaped jello shots, chocolates, etc.