Christies auction house staff member John Franklin tries on a tracksuit and a metal knuckle duster ring worn by comic spoof television rapper Ali G in London. Christies auction house staff member John Franklin tries on a tracksuit and a metal 'knuckle duster' ring worn by comic spoof television rapper 'Ali G' in London December 9, 2004. The ring is expected to fetch up to ?1,500 ($2,900) when it is auctioned as part of the Film and Entertainment sale next week. REUTERS/Toby Melville