Whether you're a Mad Men completist or just a totally normal adult looking for a hip excuse to play with dolls, you'll want to pay careful attention to the following words: To celebrate the show's season-four premiere this Sunday night at 10 on AMC, Vulture is giving away a set of Mattel's four Mad Men Barbies — that's Don, Betty, Roger, and Joan — to one lucky winner. Here's what you have to do: Don Draper can make anything seem great — cigarettes, jai alai, and even Richard Nixon. So how would he handle the BP account right now? Leave your slogans in the comments by Thursday at 5 p.m. For complete contest rules, see here. Good luck!