You're talking about an invention, which means you need a patent. Copyrights are for the exact text of a document/movie/song/etc. Trademarks are for symbols and names. The patent office stopped demanding prototypes over a hundred years ago, since they had no place to keep them.
You do, however, need drawings. You don't actually have to describe the mechanism that implements your patent, which may actually be a separately patentable invention. A new kind of theme park ride or improvement to one is an invention all by itself.
But you do need to be able to describe exactly what goes into your invention, with drawings. Getting your patent broad enough to cover everything that's your idea, without being so broad as to be invalidated, is the job of a patent attorney. You should be able to find one in the yellow pages.
The patent attorney will help you describe and format your patent, including the necessary drawings. More.
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.