How should I clean or polish my yoyo?

 Hi. I recently bought a new Dark Magic. I have been playing with it heavily for 3 days and I noticed that the aluminum rings are losing there shine. They're closer to dark gray than silver. 
 I was wondering what the best way to clean or polish the metal is. I have tried baking soda, but even though the paper towel was just about jet black, the rims weren't much shinier. I also tried some metal polish. It worked alot better than baking soda, but they are still dull in color.
 Does any body have a suggestion or personal secret on how they clean there metals?  ???

Thank You!


Try looking here:

Also use Wizard polish  ;D

Here is a video: