-An animatronic thinks it has some advanced AI. This "advanced AI" is actually just a ghost that likes to talk a lot.
-Two fighting over control of the same body (idk like the Sun/Moon thing or maybe Goldenduo)
-An AU where the Emily family basically swap places with the Afton family
-Create an OC from one of the challenges you can find on Youtube. Then, write your OC into a scene that actually happens in the games or books.
-Get illusion discs involved. Go cray-cray. Make the protagonist of your story face absolute terror. Show no mercy. Each corner is just another twist or turn, every shadow is watching, they will never be alone again.
-Fazbear Entertainment is allowing people to purchase all kinds of animatronics for special occasions like birthday parties, etc. Your POV is stuck at home with a deadly robot, yada yada, they either die or live.