Some tasks are better left up to computers, like playing "Jeopardy," calculating pi, and mixing cocktails. Wait ... mixing cocktails? If you don't think a computer can whip up a compelling cocktail, then you haven't met Bartendro.
A creation of the awesomely named company Party Robotics, Bartendro is a robot mixologist crafted from peristaltic pumps, Raspberry Pi, custom electronic dispenser boards, and food-grade tubing. It may simultaneously be the least-necessary and most-desirable robot in the world.