This is a mug with three stacked heads: a skull at top, a shrunken head in middle, and a tiki head at bottom.
Glazed in a light brown.
Designed by Tiki tOny, sculpted by THOR, manufactured in China, and produced/sold by TikiLand Trading.
TikiLand Trading describes the mug as being sketched in the notebook of an unknown explorer:
"One such artifact was a stack of skulls depicting the three stages of existence, drawn on a cave wall, deep in the jungles of TikiLand."