If you have a bath tub, you can put some ping pong balls in there, and the kitten will play with them by himself - he bats the ball up the bath tub, and then it rolls back down to him with a delicious whirring sound. It is a noisy game though, as that whirring sound is only delicious if you are a kitten, and no kitten can sit at the bath and play this without jumping around and making lots of thumping noises. I introduced a certain wizard's kittens to this game, and it got immortalised as bathball.