I had to wondered if my Luts Elf Yul Satyros, (who's name is still pending) could in deed stand on one hoof as I really never had a centar type of doll before and its sorta fun to find out if they can do it or not.
It can indeed be done the Elf Yul Satyros can stand on one hoof. First pic is of him standing on one back hoof. The second he is on his front hoof, but how I got to get him to balance it doesn't look like he truly is standing on one hoof unaided.