The Revolver Ring is a design from Japanese designer Mehem, who combines "luxury with coolness" in all of his pieces. This particular ring is designed for men (sizes 11 and 13) and it looks very much like something that James Bond might wear - except that for Mr Bond, the gun would have been real. The ring is also available with a knife in place of the gun for anyone who prefers not the bear any form of arms. Both rings are sold at Colette in sterling silver, while the revolver ring is also available in gold. Price: €135 or €150 for gold-plated (approx. $170/$190).