The Self-Stirring Mug is not an ordinary mug, because it has a built-in small motor and a small stirring mechanism in the bottom. You just need to fill the mug with your favorite hot beverage, add your sweetener or creamer, and press the button on the handle. No more sandy sugar in the last dregs of your drink. The Self-Stirring Mug requires a couple of AAA batteries to operate. $18.99.