This isn't really the next-gen just a Ravenclaw thing my friend and I thought of.

Ok, so Ravenclaws are creative and / or smart, right? Headcannon that they had a bookshelves in the Ravenclaw common room and they all had stuff that had to do with their studies that if anyone were to sneak in that's what they would see, but then at three in the morning you would walk in on all the Ravenclaws looking through home decoration exchanging pictures furniture and crap, then as they all get tired they put these book back, make a pattern or something on the bookshelves and it goes back to books for studying.