My horses share a space 24/7 and play hard at least 5x per day. The thing they spend the most time with is the Jolly Tug ball. They play tug of war. Sadly, with this amount of play, it doesn't last that long but even as it is in shreds, they still love it. My favorite thing is when one horse picks it up and bonks the other one with it to get him to play.