Wonderbra has developed a new bra called the Ultimate Plunge, which the marketer says gives women "the confidence to embrace the plunging neckline trend." And speaking of bravery and plunging, the marketer introduced the product with a grand stunt at the Battersea Power Station in London (the same building featured on the cover of Pink Floyd's 1977 album Animals)—putting up a giant billboard of Wonderbra girl Adriana Cernanova wearing an Ultimate Plunge and having three random women bungee jump from the top of a crane into Cernanova's mondo-cleavage. The women—Victoria Joint, Heidi Speed, and Kate Hassen—won some sort of online competition to be the first to jump. You'd think it would make more sense if dudes were invited, but perhaps that was considered too crass. Couple more jumping images after the jump.