This is the "Kuna Loa" mug designed by Dirk Rehder and manufactured by APS Tiki (there's a thread about them on the Tiki Central forums).It has a partially wiped green glaze on the outside with an off-white interior. Marked "Kuna Loa" on the base. 17cm high and 7cm wide... according to the website I got it off.
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Tiki Mug Design
Kuna Loa
in 3 collections
This is a green mug shaped like a Ku style Tiki head with an open downturned mouth lined with square teeth, a small flattened nose with flaring nostrils, and triangular eyes. Top of forehead is ringed with heavy vertical lines. It has a partially wiped green glaze on the outside with an off-white interior. Marked "Kuna Loa" on the base.