I've had some luck making my own decals on a color laser printer..of course as mentioned earlier the real problem is it only works with dark colors on a light background. Even then, the colors are translucent and will be washed out if applied over anything but white.
I have a freind with an Alps printer, who did some white backgrounds for me a few years ago when I converted a C-47 into an L2D "Tabby." I did the artwork, and printed them in yellow, overlaying the white.

This is a project I started last winter. I want to do a model of a Ford-built B-24H. I settled on this aircraft, which I found on b24bestweb.com.


The view is fairly straight on, so I was able to simply "color in" the the original photo in Photoshop. I made a guess as to the colors..the name is lighter than the red fire extinguisher door but darker than the yellow bomb mission markings, and given the name, "baby blue" seemed a good choice. This is the full-size artwork. The resolution isn't good enough for 1/48, but I work in 1/72, so I'll actually have to scale it down a bit. I actually had to use Picturetrail to post the pic, because Photobucket deleted it as a "violation of terms of use."

Here's a full profile of the aircraft. I downloaded a side-view line drawing from the net, and colored it in with Photoshop. Some of the technical details are wrong, but I believe the markings are accurate (in the first photo you can barely make out the "grayed out" fuselage insignia.)

The main holdups to the project are: getting the white background printed for the nose art, and making the necessary mods to the Hasegawa B-24J to make it represent a Ford-built H.
Back to the original subject, I like your idea, Chris. There aren't many decals around for restored warbirds..most modelers tend to prefer to portray aircraft as they appeared in operational service (I'd still probably buy a set, though.) I know if I were to build a model of SSSB, I'd do her in her original natural metal finish. I don't have any real complaint with her restored appearance..the camouflage is accurate for an early B-17G, but not that particular airframe.. I do have a beautiful set of decals for the Strawberry B****, but I've heard that according to original crew members she didn't wear a nightie in combat..it was added for modesty when she returned to the States. I've got another set of decals (for a different B-24) that features the exact same girl, exactly the same size, but without any clothing. If and when I do a model of SB, the girl will be buck-nekkid!
SN