How Bizarre: An artwork comprised of over £8,000 worth of real money bills has been stolen from a Norwegian gallery.Thieves made off with the piece, entitled 'Relative Value', after breaking into the MGM Galleri in Oslo on Sunday (25.02.07).Artist Jan Christensen created the work by pasting bills amounting to approximately £8,300 on a 7ft x 13ft canvas.Christensen told Norwegian news agency NTB: "That was a pretty dramatic incident."We were afraid of something like this. The picture was insured and the gallery was equipped with an alarm."The artist - who used money from his own pocket for the piece - did not say whether he was planning to make a new version.