A London jeweller has worked with a pizza chain to create gold cufflinks that include real pizza dough. DC Jewellery and Papa John's are offering the unique cufflinks as part of a competition for women who intend to propose to pizza-loving men on leap day, February 29. The cheesiest love story submitted before the big day could net the lucky winners champagne, free pizza, and the pizza crust cufflinks. The 18-karat gold cufflinks have Papa John's dough hidden within the surface, which is also inlaid with rubies. Leap day is traditionally the when women propose to men, instead of the other way round.