Deep in the basement of Wilmarth Library, way in the back of the stacks, lies a cordoned off corner with a Muggle-Repelling Charm. Were anyone to get past it, they would find a large reading room table with the items below sitting upon it. They are warded with protective enchantments, so no touchy without permission.
Having inadvertantly discovered a cursed mirror in Week 7 and located the source of the musical numbers during Week 11, Ron Weasley has found himself the guardian of a Restricted Section in a school library. Go figure.
LABORATORY TIMER
Week #3
Looking for a distraction during a rough Week 13, Ron instigated a search party for whatever might have caused everyone to age seven years every night back in Week 3. Turns out it was an old interval timer in one of the laboratories.
While nosing around the stacks in the library, Ron found this cool old mirror, and for plot purposes, decided he should definitely bring it into his room. Cue everyone's worst selves coming out to play. And the havoc of The White Violin. Sorry, Vanya. Everyone reset anyway...
No one knows why this old karaoke machine started making everyone star in their own music videos, but once Ron tracked it down in a vacant dorm room, the general consensus among Derlethians was for Ron to put a stop to the singing. Now the machine sits and waits for someone to decide they want some magical karaoke to pass those long nights in the void...