There are a couple good sites where you can find free instrumentals online. One of the best one's that I have found to use for original instrumentals is Soundclick. You can find more information here: soundclick.com.
You may be able to find free instruments by watching the free listings on your local Craigslist site. Another may be the freebie listings in your newspaper. A third I would consider is joining your local Freecycle.
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.