Cool idea. I agree that one for Banzai would be neat, but as you said, of no use to you.
I actually did make one for Banzai as I have it now. The problem is now trying to figure out a way to randomize (with even odds) for scenarios where you can play either the Germans or Japanese vs one of the 3 allies.
How do you make even odds for 3 options (Russian, American, British) on a two sided object?