Thrift store purchase bought in the late 80s-early 90s. I have two of these, exactly the same.
Collector Gallery
Tiki Mug Design
Tiki Leilani Mug
in 91 collections
Ku design in the classic "Tiki Leilani" shape. Possibly manufactured by Orchids of Hawaii. Pale brown color. Marked "Tiki Leilani" on front base.