My cat has a favorite game I have dubbed stairball. Usually I use a ping-pong ball,but any small ball with good bounce will work. The ones with the bells are good too. The way it works is, I toss the ball up the stairs, she'll chase up after it and hit it back down to me, over and over.
It's lots of fun and great exercise to keep kitty in shape. I know when she wants to play because she'll stand at the bottom of the stairs waiting. The very mention of the word ball gets her excited-it's hilarious!
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