The person who runs the bar has a set of utensils and knick-knacks to buy. Some of these are also important: Premium Shakers: Cocktail shakers are the hallmark of professionals. You'll need a sour mix, a daiquiri, a peg gherita, and a non-centred martini ("shaken, not stirred") that James Bond likes. Purchase a shaker with a lid - the larger outer part - stainless steel and the smaller inner part of the glass. A 12-ounce shaker should suffice. You'll also need a cocktail filter that fits in the shaker so you don't pour the ice cubes in when you pour the wine with ice cubes. This is called pouring a glass of wine "without ice".