Enough already with the fruity cocktail fads that result in sticky fingers and killer hangovers. The ultimate in cool libations is an inventive concoction so succulent it's destined to achieve classic status. No. 9 Park's palmyra is a deceptively simple and delightfully potent martini made with Rain vodka, fresh lime juice, and mint simple syrup. The unknown origin of its name is part of the drink's mystique (according to the bartenders), though it's rumored to have been inspired by Prohibition-era brews.