Tired of overly-aggressive guest bartenders splashing your martinis all over the kitchen? Check out the Cocktail Shake-O-Matic ($55). This simple device combines retro looks with modern technology to automatically shake your drinks (up to 16 oz. at a time) for the perfect mix. A cool blue light provides ambiance while the shaker is doing its thing, acting like a beacon for all your thirsty houseguests.