After refusing to pay so much for a commercial hay rack I had a look around the house to see what I could find. I now have a small plastic plant pot stuffed with hay. It's large enough so they won't get stuck in it but small enough so it doesn't take up too much room. The girls roll it around the cage then rest and have a snack. Exersise and food in one neat package Plus it's got holes in the bottom so there's a nice air-flow thing happening.