This is a monster plant mug reminiscent of the Audrey II from Little Shop of Horrors, a sort of alien/monster Venus Flytrap.

From The Black Lagoon Room:

"We are very proud to announce this long-in-the-works collaboration with our friends at Milwaukee's BITTERCUBE, purveyors of some of the finest cocktail bitters in the world.

Here is FRANKENPLANT! A celebration of Bittercube's embrace of 'monster plants,' Frankenplant's pot and base feature many of the botanicals, fruits, flowers and other organic elements that go into their acclaimed bitters.

Each chompy little guy holds up to 16 oz of your favorite botanical beverage. Just be sure to bring a straw, because THEY BITE!

Mugs come shipped in a deluxe, full-color display box featuring a recipe from the masterminds at Bittercube, and are shipped with a Black Lagoon Room logo swizzle and pulpboard coaster.

Designed by Pete Klockau at The Black Lagoon Room."