This handsome tiki cup/mug/vase? comes from my sister-in-law's estate.  Unfortunately I know nothing about it nor how it came into her possession.  It is very cool, though!  The mug is vintage and I believe it is a  Moai tiki as it features the elongated head and ears, and solemn expression, found on the Moai head on Easter Island.  The glaze is dark brown and not glossy but almost a satiny type of finish to it (still shiny!)  In excellent condition:  no chips, no cracks, no nicks or flea bites.  There is a manufacturer's flaw in the glaze on the inside of the piece (see pic).  
An excellent piece for your collection - and perfect for a season full of luau's!
Thanks for your consideration!