That would depend on the vehicle (a proper intro might help).
So, a Landy with a scratch?
If it's a Series, don't call it a scratch; it's a battle scar, be proud of it.
If it's a Defender, the Series option applies, or you could make a similar one on the other door and then you'll have a matched pair.
For a Freelander, change the door. Removal is easy, just throw a bucket of water over it, the doors will then fall off.
On a Disco, Touch up kits and T-Cut should sort it.
And for a Rangie, get the butler to rub the entire vehicle back to bare metal, respray and polish, valet the carpets, empty the ashtrays and install air fresheners to neutralise the cigar smoke.