Jumpy sticks to a door or any smooth surface and hangs a small wooden lure on an elastic line. Bat it and it springs back, which is the part that keeps a cat coming back without a person on the other end. It is the closest thing to solo play that actually holds a cat's attention.Set the height to suit your cat, low for a kitten working on coordination, higher for one that needs to be talked out of the countertops.