A pun a form of word play that suggests two or more meanings. I can only think of one meaning of "blurry", but many causes. Maybe you are thinking about a synonym (hazy, blurred, fuzzy, foggy, indistinct) or homonym (no word sounds the same as blurry)?
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.