Abstract: A system of remotely actuated novelty devices is disclosed having triggering and actuating components packaged in separate, interchangeable modules. The system includes several interchangeable trigger modules, each of which detects the occurrence of an activating event and in response generates a trigger signal of finite duration, and several interchangeable action modules, each of which performs a prank in response to a trigger signal. Each action module includes a battery that powers the action module and any trigger module connected to it.