This man-eating plant mug is inspired by the Audrey II from Little Shop of Horrors.

From TikiLand Trading Company:

"During an unusual total eclipse, one of our new tiki mug designs came to life, and begged to be fed. This monstera turned into a real monster and quickly we realized it needed rum and a lot of it. Now that we have tamed this beast we can offer it up to you, but at a price…it must be fed rum at all times or it gets a little, er um, moody.

This mug holds about 20oz (varies slightly mug to mug), and is about 8 inches tall."

There is a green and a red version as well.