Weight-loss vibrators

Weight-loss vibrators are a recent innovation and can be used as a case study. The marketing of vibrators as weight-loss devices primarily started after the decline of hysteria and increased marketing of the vibrator as a household tool.

Design
Weight loss vibrators usually come in large sizes. Most of them provide a plane for people to stand or sit on. When connected to electricity, the plane will create different levels of vibrations.

The mechanism for weight loss is that when the user stands on the weight loss vibrator, her entire body will move with the vibration. The inner movements of fats was purported to burn large amount of calories after a while.

Though this mechanism was not particularly effective, but modern versions of this midcentury design still manifest themselves as vibration plate machines in contemporary gyms.