This mug shaped like a stack of two skulls was designed and manufactured by Bosko. Each skull has large eye sockets and is missing its lower jaw. Based on Bosko's own carvings at False Idol. This version has two as opposed to the regular editions from False Idol which have three skulls. As an artist proof, glaze colors and details vary and are unique. Sold through Bosko's website shortly after the website's re-launch with new design.