LEGO Castle: Skeletons' Prison Carriage (7092) for sale online | eBay
LEGO MOC 31120 - Prison by Tavernellos | Rebrickable - Build with LEGO
LEGO IDEAS - King's Knight's Prison Island
LEGO Harry Potter Hogwarts Courtyard: Sirius's Rescue 76401 Castle Tower Toy, Collectible Set with Buckbeak Hippogriff Figure and Prison Cell - Walmart.com