I found a solution to this problem! Switching from big horses to miniatures presented us with the same problems as previous poster here. Stomping, pawing, pooping in, and flipping feed everywhere became a challenge I was determined to overcome. After much trial and error I found something perfect. I already had cattle mineral tubs, metal kind, and never had much use for it, but it looked too good to get rid of. It had rolled edges on the top, light enough for my small body to hitch up and haul whereever I needed it, and they couldn't paw, poop, or tip in,on, or over the feed. I got more of them and the boys can scoot them a little on the rubber mats in the run-in shed, but outside they can't move them. They are perfect for hay also. And my 25" weanling can reach the bottom, but still to make it easier I put another little pan on a small flake of hay so she can reach. You can get these tubs at a feed store for a small amount used. They are also perfect in the corners of the stalls, and indestructable.