a.k.a. Nautical Cleat Tiki Mug
This mug depicts a pier post with a large dock cleat, and several sea creatures attached. The lid has a nautical star with the letters TIKI between the compass points.
From the artist: I was inspired by reading the history of beersteins and learning the lids were meant to keep out the Black Plague. It seemed all the more topical to make this lidded drinking vessel to keep away our current plague.