From TikiLand Trading Company:

"The 'Poison Pineapple' mug is inspired by Jeff’s first foray into Tiki related art. Jeff designed, and first introduced, his Poison Pineapple tee shirt in 2016. For a brief time, the original art also served as the logo for Jeff Granito Designs. Jeff's been wanting to make this into a mug ever since!

This mug holds about 16oz (varies slightly mug to mug), and is about 6.75 inches tall.

Designed and Sculpted by TikiLand Trading Co., in sunny Southern California. Imported."

There is also a Twilight Teal Edition.

This design is inspired by Disney's 1937 animated classic of Snow White, where the Wicked Witch dips an apple into her poison cauldron and the poison forms a skull-like coating momentarily on the fruit before disappearing.