Say what you will about Damien Hirst, but the man clearly understand the importance of merchandising. His venture Pharmacy, opened in 1997, was essentially a pill-themed bar and restaurant, serving pharmaceutically-inspired food and drink from inside walls of medical cabinets. This wallpaper, originally designed for the restaurant, is currently for sale via Other Criteria, Hirst's London-based gift shop.
We're also big fans of his "Butterfly' print, first shown at the Tate Britian in 2004.
Like all of Hirst's work, both wallpapers are prohibitively, absurdly expensive (even Hirst's own employees are presently out of work.); one roll will cost you about $1,900. This is definetly one of those cases in which we wholeheartedly recommend xeroxing as a substitute.