I had gotten a clear Ghost Trooper toy recently off someone on the Skullbrain board. For this custom, I painted the inside of the body brown and taped off and spray painted the red. Once that was done, I did a black rub, to make the details pop and give it weathered look. I painted the inside of the head with a glow in the dark paint, which was hard to work with, but looks great. I like painting the inside of clear toys, because from an angle, you can still see the clear on the surface (especially in the skull on the chest).
http://bleedingxedges.blogspot.com/2011 ... ooper.html