Banksy Slave Labour Sewing Machine Boy Ladies TeeThis Banksy piece of street art did not go unnoticed when it appeared on the wall of a pound shop in London 2012. This clear comment on the inexpensive Golden Jubilee and London Olympic memorabilia certainly ruffled some feathers. Further controversy was caused when the piece was removed from its original location and put up for auction. It eventually sold for over a million dollars, but you can have it for little more than a tenner.