Big brand names are sinking their teeth into fake ads for True Blood , HBO 's sexy vampire-themed hit. Fashion house Ecko Unlimited, car company Mini, insurer Geico , Gillette, Harley-Davidson , and career site Monster will lend marketing cachet to the popular show. The True Blood ads, which appear in magazines and online starting Tuesday, are designed to get people to tune into season two, which begins June 14. "A key element to the show is that vampires live among us," says Zach Enterlin, HBO's vice president, advertising and promotions. "We've extended that idea to cross over and bend reality to target vampires with faux special vampire products." In the show, vampires have learned to survive without nibbling the necks of humans, thanks to a synthetic blood beverage, Tru Blood. The drama hinges on whether they will. Among ads: a Monster ad that promotes "thousands of night-shift positions," and a Mini convertible ad that let's you ...