Abstract: A vibrator is disclosed for mounting on furniture in which a pair of vibrator motors is each mounted to an independent, long, relatively rigid resonator member capable of transmitting vibrations, the two long resonators for the respective motors being parallel to one another and mounted by non-rigid means such as a sheet of cardboard or springs to the remainder of the structure of the furniture. One form of complete unit comprises a non-rigid sheet containing two rigid rods each associated with an off-center vibrating motor, which underlies the surface of the furniture contacted by the user. A vibrator controller supplies the two vibrator motors with 60 Hertz pulsed DC current which is amplitude modulated at approximately 16 cycles per minute, with the modulation supplied to one motor 180.degree. out of phase with the other motor so that the user experiences the sensation of a moving wave.