Metal spade

The  is a quest item used during the Miss Cheevers section of the Recruitment Drive quest. It is made by burning a regular spade with a bunsen burner to remove the handle, and is then used in a hole in a door before adding cupric sulphate and dihydrogen monoxide. These chemicals heat the spade, expanding the metal and trapping it in the hole, at which point it can then be used as a handle to open the door.