At Nikolas Patrick Pawnbrokers in Kent, brothers Charlie and Patrick are looking at a staggering collection of boxing memorabilia owned by former boxing promoter Kellie Maloney, and an unusual electric unicycle. At London Road in Sheffield, head man Dan has a diamond encrusted bracelet in his sights, and he's also considering deals on two high-end leather belts and a huge collection of coins featuring some of the world's most dangerous creatures.