For those of you who use Hay Nets to feed your horses, but get frustrated trying to hold the hay net open while stuffing in the hay, I found that a large - left over mineral barrel (often used for cattle minerals) works perfectly. If you don't have cattle you can often buy one of these barrels at a mineral feed store for a couple of dollars or cut a full sized plastic barrel in half.
Spread Hay Net over barrel
Stuff the Hay Net, tie up the top of the netting, remove the net from the barrel and hang the net (above shoulder height) using a clamp.
Note: Hang the netting high enough to prevent your horse from getting a foot caught and low enough to avoid particles from dropping in your horses eyes.