Thanks for all the replies,
I decide to try sign vinyl and picked up some yesterday.

I have one wing almost finished, and the other half done.
I will post other pictures when I finish the plane.

The large Yellow section was a bit tricky... I drew the wing
in CAD, then made a paper template to test fit, then cut out
the vinyle. The yello looks kinda mustard color in the picture,
but it is brighter in natural light.