Toothpaste mixed with baking soda, works like a really fine grit sandpaper it should work good to polish it too. But we'll see. Lots of good uses for baking soda, it's a miracle product. Mix some with vinegar and pour onto a spot with burnt grease like the oven and let it work. It pulls the grease like it was nothing, half an hour later you just scrub it off. Mix it with water and pour it onto a rusty knife, start grinding the spot with aluminum foil and the rust goes away and knife looks shiny and new. Works great for unplugging drain pipes as well when you mix it with vinegar.