GM Timur Gareev plays 10 inmates blindfolded. I've seen this guy in person at a couple of tournaments. He seems odder than your average odd GM. If you look at the pictures of him playing the inmates, you'll see him wearing an outfit that is really odd. Also, in one of the pictures, he's facing the players. Why not just turn him around?
Negative Space Chess Set - even more unplayable than your normal artistic unplayable chess set.