Here's a fantastic site: smcosplay.com They sell tiaras, transformation pens, etc: smcosplay.webs.com/sailormars.html Looks pretty good. You might also want to try: mandarake.co.jp/ which is a HUGE anime store in Japan that ships internationally. Good luck!
So far, I'm not finding an exact match of the classic Sailor moon costume. I've seen two sites that might be what you want.
I cant really gove you an answer,but what I can give you is a way to a solution, that is you have to find the anglde that you relate to or peaks your interest. A good paper is one that people get drawn into because it reaches them ln some way.As for me WW11 to me, I think of the holocaust and the effect it had on the survivors, their families and those who stood by and did nothing until it was too late.