Kinky idea jbele08! I love it! You could also add a little twist to it by playing the role of the femme Nazi soldier and have your man wear the Swedish commoner costume (for men of course). I've seen some army inspired costumes and very kinky ones on this
fetish clothing site, hope you'll find a pair that's best for you and your man. And if you don't mind, post a picture of whatever you come up with, I'm so excited for you!