Theres a nice P-47N with naked chicks on it. I'm sure there are other plane skins with women in various states of de-robement. That fit the bill?
And of course, on the German side you have hearts...in green. (I worry about the Krauts sometimes...hearts, stags, other heraldic whatnots, but no T&A on the planes. If I had been flying a 109 or FW, I'd have known I was on the wrong side the minute I got a good close look at some of the art painted on the B-17s)