how to remove scratches from macbook pro aluminum body

I got a small scratch (without any indentation) on the narrow strip of aluminum left of the keyboard and just above the USB sign.

It's a scratch of 2mm length extending from top to bottom (in the picture it's the part where the aluminum body is faintly grey).

And I was wondering whether there is any proven way to get rid of it, or at least conceal it because that little imperfection is driving me crazy!!!

And I would appreciate it if nobody said "Get a sticker", "It's a small scratch get over it", or any other positive crap like that.

Cosmetics are just that important to some people...