Anal Plug/Tuning Fork

I saw this amazing device on another website where the owner described its effect. . It was a one piece stainless steel butt plug , about four inches long ,classic shape with a tuning fork on the opposite end.

Fine workmanship. Once inserted to a clean rectum, and tapped with a small steel rod, it vibrated the prostate. Superb concept and results. Has anyone else seen this and know where to purchase one ?

I want one that mimics my bag .... b-flat. I know, bad pun.

Http://www.stockroom.com/g/c055.jpg