Seriously though. I want an 18-hand tall Friesian, for him, that would be 70 cm at the withers.
Where in the world would I find a decent looking horse that big? And that could support having a doll in a saddle on it?

http://fineartamerica.com/featured/frie ... ensen.html
(and you know, in the back of my head, I'm envisioning Ivan strapped onto a little saddle on a young miniature horse.)