Artisans who turn ideas into art: Who pickled Damien Hirst's shark and painted Ai Weiwei's seeds?
Turk's bags are produced by professional bronze-casters. 'Whether I am using my own work or someone else's work is no different. It is all a matter of interpretation in terms of ownership in art. Artists just simply re-signature, reauthorise the visual experience until another artist does another signature on top', Turk says.