Polishing Aluminum Valve Covers

Thanks guys! I appreciate the input. Not sure who cuda chick is but I'm hoping I can get these shining enough to not have to ship them. Again, I'm not looking for perfection; just figured I'd hit them with a tiny bit of elbow grease before reinstalling. Looks like the mothers polish is pretty popular. I actually know a chemist that works for Mothers, so I'll have to talk to him and see what he recommends. Thanks again.