A programmable sound effects device which utilizes a motion-sensitive mechanism for selecting unique sound effects. The device is comprised of an electronic motion-sensitive actuator, a sound effect storage media for storing a plurality of predetermined sound effects, and a playback mechanism for audibly emitting the motion-activated sound effects. This device is designed to be used with amusement and entertainment type products such as toys, games, dolls, and props, with exemplary uses in toy swords, drumsticks, magic wands, and the like. A preferred embodiment is comprised of a unit which is physically incorporated into the handle of a toy sword. As the user moves the toy sword in a predefined manner, the motion-sensitive actuator senses the motion and plays out a plurality of unique sound effects as a function of the user's movements. The motion-detection algorithm which triggers the different sound effects is programmable. In another embodiment, the device is contained within a single housing unit that is worn on the user's body. This embodiment is well suited for many toys, props, games, and the like that do not have any sound effects capability but would benefit from such capability.