In the past few years, we have covered a bunch of awesome drink mixing robots. Would you like to build your own? The Drinkmotizer might give you an idea. It is a Raspberry Pi & Arduino driving machine that can prepare your favorite drinks without you having to break a sweat.
You will need to invest over $1000 to build something like this from scratch. In addition to a Raspberry Pi Model B and Arduino Uno, you are going to need a breadboard, 2 Centepede Arduino IO breakout board, a touchscreen monitor, motors, and a few other parts. More information about this project is available here.