In regards to my last post where I mentioned Miss Jessica Goldsmit's  Kickstarter to create speciality dice for the visually impaired I've an update already.
 No later than a day I made an inquiry if she had managed to create any prototypes of her designs did one arrive which she had printed by shapeways.com

As you can see its slightly larger than a regular D20 and apparently rolls great though the Brailles legibility still needs to be tested. She has also just added the designs for a Dreidel with Hebrew Standard Braille, and a Dead/ Bleeding token.