We’ve been mixing Mad Men-appropriate cocktails for weeks now in anticipation of Sunday’s 2-hour premiere. And because Mad Men-appropiate cocktails are everything a cocktail should be. Vodka martinis, classic Old-Fashioneds, even gimlets. The Sterling Cooper Sling, created by Nicholas Vitulli  at The Montage Beverly Hills’ Ten Pound is everything you love about Don Draper’s Old-Fashioned, served in Roger Sterling’s favorite glass.