How do I get the awful urine smell off my hamster?

Well, there's always getting a dust bath-you can buy special hamster dust at Petsmart. You put it into a cup, big enough for your hamster to roll in, and it gets their fur clean. It's because it's made of grounded pumice, which gets out their excess oil and dirt. It should also help the smell, too. Just place the cup or any other accessible bowl into his cage. Most hamsters love rolling around in it.