Promising review: "The photos here are before and after the use of Feed-N-Wax. This is a speaker that had some surface scratches after a move. I read about this on BuzzFeed and gave it a shot. The first speaker, with the surface scratches looks great. It turned out beautiful and you'd never know. The second speaker, the scratches are still noticeable, but the wax darkened them. The effect is actually really pretty and, overall, I feel as though this product saved the day. The smell is very light, the product is easy to apply and wipe off, it gives everything a nice sheen, and was worth the money." —Karen
Get a bottle on Amazon for $6.03.
FYI, if you're facing much damage that's a little worse than that, you might want to try their other (also well-reviewed!) product, called Restore-A-Finish, first; it does more to hide minor scratches, white heat rings, deep water marks, and stuff like that. The two products are actually made to be used together! Get that on Amazon for $10.99.