This mug is shaped like a skull, but instead of teeth the lower part has been replaced by the traditional Tahitian Cannibal Tiki Trio (Hunter, Catcher, Ingestor).
From Tiki Kaimuki:
"This is the latest mug in the Kult of the Kannibal series. The KanniSkull mug is about the size of a cantelope and will hold a nice amount of liquid. This design will be limited to around 100."
These were available in a variety of glaze combinations.