A skull bong is a water pipe shaped like a human or animal skull. It usually features a hollow skull-shaped base that holds water to filter smoke, with a vertical neck or mouthpiece rising from the top or back of the head.
The Body: The main water chamber is moulded to look like a realistic, crystal, or cartoonish sugar skull.
Materials: Most are made from clear, frosted, or electroplated borosilicate glass, though some use durable silicone or acrylic.
Percolation: Includes a down stem (often fixed or diffused) running into the skull base to cool down hits.
Size: Varies from tiny 4-inch mini desk pieces to large 14-inch tall center pieces.