Doesn't pass the sniff test, but looks kinda cool: Ampro Design's Design Business Bottle concept is a single wine bottle with two necks, "made to capture the essence of our business in conection [sic] with the client's business." It comes packaged in two glasses, labeled "our business" and "your business."
While I get the sentiment behind the concept, I don't think it would come off in practice. With the ergonomic difficulties this design is bound to bring up, I think chances are high your inaugural pour might be interrupted by shattered glass, ruining the symbolism. Client's not gonna like that!