The Shake Signal is a helmet-like device that Shake wears in the episode Bus of the Undead, which lures the Mothmonsterman into his house. Shake claims that such thing "turns on whenever there is danger" (but it was on when he was watching a Dracula tv program at night). It was eventually shut down by Carl that night, which motivates the Mothmonsterman to threat the Aqua Teens to turn it on again.