Dragons are considered legendary creatures and therefore it is not possible to find a dragon horn. Most of dragons, in legends, did not have horns with the exception of some Asiatic dragons or in some rare European tales Sometimes, dinosaurs bones are called "dragon horns" either in some paleontologists friendly slang or for the purpose of fraudulent commerce The best place is on the head of the dragon.
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.