I have a friend, Ed Bell from Hagerstown, IN, that might possibly use it.  He already has one that I know of but it's possible that he needs another.  He has worked with Purdue giving talks about working with a disability.  I can contact him or give you his contact info.  I'm guessing he may not need it but I also guess he'd know someone that would need it.  Thanks for the offer.  If you want his contact info, my email address is good.