Well, this isn't your average designer collaboration, but Mary-Kate and Ashley Olsen aren't exactly your average duo. The twins (and their brand, The Row) have teamed up with renowned artist Damien Hirst for the first of Just One Eye's partnership series. Los Anegeles-based Just One Eye, an online fashion and art curator and e-commerce site, says the project is "a fascinating study in contrasts; the classic elegance of The Row’s Nile crocodile leather backpack, adorned by the rebellious hand of Hirst." With only 12 bags created and signed by Hirst, each features unique embellishments, from an assortment of prescription pills, to Hirst’s signature spots. Want one? Its all yours, for $55k. (FYI - the unadorned version by The Row sells for $39k).