dose anyone know where to get really big posters? i need one that will cover all atau almost all one smallish dinding harry potter ones would be cool but it could be something else

Well, I'm not totally sure if this is what you're looking for, but there are websites where anda can Rekaan a poster with your own personally chosen image on it, and depending on the website anda use, anda can make the poster a variety of different sizes. Here is one link: link