Brown Moai Mug
This unmarked brown Moai mug is similar to the Orchids of Hawaii R-72 Easter Island mug and the Dynasty Wholesale DW128 Easter Islander mug.
Tiki mugs similar to this can be found on page 16 of Tiki Quest - Collecting the Exotic Past by Duke Carter.
Found in the Mug, Polynesian Pop, and Tiki Collections.