Here's a little "toy" that my cats love that I found by accident. Remove the plastic ring from a gallon milk jug and roll it. The cats jump at it, swat it, chase it,fling it, chase it some more, it's entertaining for the cats and you. After a while they quit and you can just roll it at them again. Worse case they don't play with it and you have to pick it up to throw it away. You can even tie on a few inches of yarn and they like that too. makes it harder to roll but is still light enough for them to toss around.