Gama-Go Ice Skull - Silicone Ice Cube Mold / Tray Get rid of your boring old ice cubes with this skull-shaped ice mold by GAMAGO. The ice cube for a truly wicked drink. Skull Ice Cube is ideal for chilling whiskey or for just making any drink look bad-ass. The mold is made of silicone, so the ice can be removed with ease every time. Perfect for gift giving