Originally Posted by TunnelRat
You could just buy a bottle of Cold Blue and put a drop on yourself...
The last couple of responses must be from folks who don't have CZs (or no CZs with the polycoat finish.)
Cold blue doesn't work with the CZ polycoat finish, unless the scratch is down to hard metal, and even then it wouldn't look right. Thinly-applied (maybe thinned, first) matte black auto body touchup paint is the best response.