You can get Badger, Horse, and other hair at 'Aliexpress.com'. Here is a link --> <http://www.aliexpress.com/store/group/Badger-hair/813843_211818390.html>
That link may not work though - In order to browse the site, I think I had to register first. For regular Silvertip hair, it’s quite a bit per kilogram. Different prices for different grades of Badger Hair.
Here is a picture of a bundle of Silvertip Hair.
Attachment 135843
If you get the hair, you still need some sort of ‘form’ to put the hair into and form it into a knot. Then you’d have to tie it, like in the DaVinci film. I think it can be done, but you’d have to be very careful - no room for error with the price of the hair.
Good luck to you. I hope it works out. If you try it, could you share some pictures of your progress? It would be very interesting.