Hey guys I'm wondering if anyone knows of a way to polish out small scratches from a body shell? ie is there a type of polish for bodyshells?

I've noticed that my Tamiya bodyshell scratches almost as easily as an ipod does (my HPI shell on the opther hand is tough as nails).

I dont mean scratches from crashes etc as I understand that some things you cant just polish out but all the little scratches from using a slightly rougher cloth for example.