Coolest thing ever if you have ever tried it. I really hope someone puts this into an actual product. I did find one person that finally came up with the idea to use it as hearing aids, that's cool. Anyways, I figured this out a long time ago when I was little and I first had that lollypop that played music in my mouth. They also have tooth brushes that do the same thing. Coolest thing ever. It works by vibrating the music through your teeth and into your small bones of your ears. Same idea as the jaw bone device too I believe. I had this idea back in the year 2000 but really didn't have the technology to make it work yet. Now we have small little bluetooths and everything which should allow this to work just fine. My idea is to use this just to listen to music through your teeth. I used to be a dental technician so I was able to create one before.
The product should be small and easy to keep in your mouth, obviously needs to be water proof. The goal is to be able to listen to music without anyone else hearing it around you, unless you open your mouth. :) Have you ever heard surround sound in your head? It is the coolest thing ever! Two motors (one on each side of the mouth) = Surround Sound Awesomeness!! If you need help on this let me know. I would love to be a part of designing it. I have great ideas and would be happy to help. Looks like someone has made it now, it looks ugly though. I would make it discrete. :) http://www.popsci.com/technology/article/2012-10/project-month-music-player-you-can-hear-through-your-bones Also here is a better design that someone made that is used for hearing aids. Pretty cool. When I had this idea no one had these ideas yet. :) http://www.sonitusmedical.com/