MIAMI — The inventor of the "Magic Fingers Vibrating Bed," which brought weary travelers 15 minutes of "tingling relaxation and ease" for a quarter in hotel rooms across America during its heyda. .... My brother and I getting a quarter from my dad when we checked into a hotel on vacation and singing and making other noises while being vibrated. Then we would break down into contests on making the "best" sounds while having the external vibrato running. ...