How to find Harry Potter Interior bedroom decorating?

Well that's a really cool theme. My friend had a Harry Potter themed birthday party so she printed out A LOT of paper bricks and kinda made wallpaper out of it and it looked really cool so she actually kept a part of her wall still "bricked". I think you should try searching online for that kind of stuff or maybe try Mugglenet.com for a whole harry potter website and maybe they have some stuff. Another thing you could do is get a whole bunch of posters and stick them to your wall. Your best bet is to order these things online. I would highly doubt there is a store that actually sells Harry Potter table sets and things like that. However, if you're willing to spend some money you could customize tables to look like the props in the movie.