for asylum 3rd ending. when you get the leg binder the janitor will tell you that someone dropped some change under the fridge which you can find by repeatedly interacting with the fridge; you cannot get it while you have the leg binder though. If you spam interact the fridge before you get the leg binder i.e on a different run you will find some change which can be used with the vending machine to get a hammer. use the hammer on the cracked wall in your cell.
No idea on the 3rd ending for candy witch. think it might not be in the game.