About a month ago I bought 4 slow feed hay bags. I have been hanging them for the time being until I come up with a better solution. I want them to eat off the ground, but because they are shod need to put them in something/have something surrounding them. Any suggestions for what to use? Top concern is health and safety of the horses. I currently have one hag bag tied into a water trough such as this
http://www.tufftubs.com/htdocs/plinoval.htm which works, but it slides around quite a bit and the one horse ends up following it around his paddock.
What else may work safely, but be heavier?