My ipod is scratched what can i use to clean it?

Rub it.

Here is the secret!
Try this cleaning cloth. You have to buy in packages of 5 but they are only like $3 bucks a piece. I have ordered them and use them on everything, especially cleaning windows and clean mirrors. They are made out of tiny fibers. They are guaranteed not to scratch and all you do is rinse the cloth under water, wring it out and wipe ANY surface with no streaks or scratch. Use em over and over. I have not thrown one away yet!
I even waxed my car with it! I am sold on this ...I encourage you to try it out.

There is no real way to CLEAN off scratches, but you can clean off fingerprints.

polish

nothing much you can do about it.

iCream... you can buy it off amazon... or go the local watch polisher/maker/buyer-seller (I got mines cleaned from there)