While not being a die-hard fan of Harry Potter, there IS a prop that I've instantly loved when seeing it: the Marauder's Map.
So I've just bought the Noble version (with the display), and I can say that I'm very happy with!
The paper could be a little more realistic, though.
Visually, it's good, it really looks like real parchemin paper, but when you touch it, you see that it's just regular paper. But it's ok, cause I have it mainly for displaying, and at that cost it really worth it.
The only big scam with it: it doesn't work, you don't see people moving on it! But I guess it's not Noble's fault, I'm just a muggle...