Visible crew/equipment: Near the end of the film when Spike is hanging from the chandelier; Crowley is shown to be in a suit of armor. When he starts to hop away to cut down the chandelier with an ax; the left leg of the suit of armor that is left behind, falls over. After it has fallen, you can see a small metal rod being retracted into the floor. This rod was obviously being used to hold the leg into place until it was supposed to fall over.
Visible crew/equipment: The scene where Daryl's bike is about to be sucked into the dish. He is lifted into the air and you see two hands holding him up under his armpits. (00:33:17)