I do, in his box, in the arena, in his paddock. In the winter time, when it is really cold, he is in a box during the night, and I put a Jolly Ball. In his paddock, there is a grooming and massage mat on the fences so he can scratch himself, he loves it! And I plan to buy a ball you can fill with treats. When the horse nudges the ball, it moves and a treat falls out every once in a while!
I do and I love it! We run together, jump, go for a walk in the wood, swim, in the wood we jump some natural obstacles as trees and so on. I also give him a ball and he throw it and bite it. We have fun!