My big chestnut mare is just awful about letting her colt share the feed tub and last night he was standing at the very back corner of the stall while she lustily ate all of the grain. So I went to my supply of junk and found some black aluminum rods that are perfect for your cheapie standard $3 foal feeder. I drilled holes, found nuts and bolts to fit, and put this up in the stall for my little guy..
I've got quite a LOT of these aluminum rods, in a couple of different sizes. Might try my luck selling a few on ebay..
So Run for the Roses, as fast as you can.....