This is a mug shaped like a skull missing the lower jaw. There was a previous version of a jawless skull designed by Mr. Bony and manufactured by Gecko'z South Sea Arts, but it was a bit more stylized. Gecko'z version is more realistic and features a more defined nasal cavity, more rounded/smaller zygomatic bone (part of skull beneath eye sockets) and smaller more realistic teeth. It is not marked "Mr Bony" on bottom. This version of the mug is customized and, as such, glaze colors and details will vary.