Finally. After much searching for reasonable prices, after waiting for the order to pass through, and after waiting for it to arrive. My Hogwarts Finally has its token poltergeist. Here is my
MOC) Harry Potter - It unscrews the other way - LEGO Licensed - Eurobricks Forums
Hogwarts House Ghosts : r/lego
Lego Peeves Minifigure 4705 4709 hp010 | eBay
Lego Peeves 4709 4705 Sorcerer's Stone Harry Potter Minifigure | eBay