We flagged up a ceiling version back in 2007, but now you can get also pick up the Ingo Maurer Canned wall light, which is great news for fans of pop art and soup.
It's Warhol-inspired lighting, but it doesn't derive from the 1960s. The Canned light is actually from 2003, the work of Christoph Matthias and Hagen Sczechimu for Ingo Maurer. For your money you get the Campbell's tomoato soup can (made from aluminium and steel) complete with bulb, reflector, distinctive cabling and switch.
£185 secures you one, which isn't a bad price for a piece of practical pop art.