I think you're in dodgy territory putting swastikas on anything, historical accuracy or no. It's still far too offensive to too many people, and too open to misinterpretation. Somebody's bound to get the hump over it. Be nice to think you could put whatever the hell you like on your jackets, particularly as it's meant as a tribute, but it's too emotive a subject for too many folks, and you're bound to run into trouble. I would have thought you could get away with black crosses to indicate aircraft victories-the Luftwaffe is, AFAIK, still using them as its insignia, or at least has done so since the War.
Bombs, well, I've got a bomb on my A-2 squadron patch (548th BS, 385th BG, Bugs Bunny sitting on one), and I've never had a problem with that. Pinup art I also think you can get away with if it's not too pornographic. There are people out there just dying to take offence at something, and there's a chance you might come across some whacko who gets shirty, but there are plenty more offensive symbols around on band T-shirts for instance, than on any A-2.
I wouldn't be surprised if the Disney Corporation didn't try to charge you for use of their image without permission!