Super Pet Rollin' The Hay Spinning Hay & Salad Dispenser www.petco.com - $9.99 Product Description: It's nutrition and fun rolled into one! Our Rollin' The Hay Spinning Hay & Salad Dispenser can be used three ways--on the stand, hanging inside any wire cage, or free-wheeling anywhere. RattyRat's Review: Our rats didn't have much interest in this toy when it was filled with hay, however when we filled it stuffed full of plain white paper towels, our rats had a blast with it. This toy is a very inventive and fun way to provide your rats with the materials to make a nest out of. Better yet, after you stuff it full of paper towels, take a treat or two and crumple them up inside of a paper towel and shove it in with the other towels. It will be a nice surprise for them to find. This toy is great and attaches right to the side of the cage, and the ball comes off for easy use to refill.