I have an idea, pretty much along the lines of what Aegis said.
In the Hangar, you should have a couple of paint cans you can click on laying besides the plane yuo have chosen that would each function like buttons you would click on to choose a different paint scheme for the bird you have chosen.
Now here are the issues to address:
They would have to come from HTC, so we would all see the same skins and not only locally and in the film viewer. Everybody would have to have this art as part of a patch or something.
There should only be 2 (3 total) optional skins per plane, so people with low end cards could keep up.
Fan artists could submit skins to be added, but they would need to be reviewed by HTC and incorporated into a patch, as again everybody would need to have the same fileset.
There you go, now can I have my FAA Corsair II? - Dark blue sucks!
