It seems this is the real link :
http://www.nexproshop.com/collections/frontpage/products/shadow-nex-hotshoe-adaptorThis is probably stupid to build, but you have to have the infrastructure to deliver ...

. I'm expecting to see that copy and past soon from our China friend and this will cost around ~15$.
My only concern is if it is made enough well to limit high voltage to go through the camera ...
Frank