Just when you thought it was safe to pour a cup of coffee, you hear something in the distance. A low sound, musical, repetitive. Duh-dum.  Duh-dum-duh dum. Suddenly, there are sharks everywhere. Look's like you're gonna need a bigger mug.

This heat sensitive mug releases sharks into the scenic waters painted around the cup.  A calm ocean is transformed into a shark menagerie when you pour in a hot beverage, with one beastly fish about to snap up an unsuspecting swimmer.  The good news is the sharks disappear in the dishwasher. So you've still got your chance to save the day.

Shark! Heat Sensitive Mug, $12 @Wanelo

H/T The Awesomer