Cut Fetters
A list of known cut fetters ghosts once had.
Mechanical Fetter
In addition to the Electrical fetter, some machines in the game would have originally had a Mechanical fetter. However, it is not known what sort of objects exactly the fetter would be put on.
While no ghosts have been confirmed to use the fetter, Gremlins are a likely candidate due to all of their deaths being a direct result of machines compared to Wraiths dying to electricity and Fire Elementals having a connection with it.
Window Fetter
Windows were a fetter used in the game before later on being replaced by the Air fetter. A ghost bound to window would likely always show up on the inside side of a window to allow ghosts with it to scare inside.
The fetter was supposed to be used by Air Elementals and Banshees.
Site of Murder
Site of Murder was an early version of the Murder and Corpse fetters, combining both into a single one.
It was originally used by Manes, Apparitions, Shadows, and Wraiths.
Despite having both a Murder and Corpse fetter in the final game, Wights didn't use Site of Murder and instead used their own Grave fetter
Site of Emotional Event & Site of Violence
Originally instead of an Emotional and Violence fetter the game instead had Site of Emotional Event and Site of Violence respectively, it is unknown if they had any other changes compared to their final versions like Site of Murder.
The fetters would have likely just been used on ghosts that had Emotional and Violence fetters respectively.
Grave
Before the split of Site of Murder into Murder and Corpse, Graves were their own fetters.
The only known users of the fetters would have been Wights.