I think about this every morning with I make the bed. My older cat is 13 and it's hard to get her motivated to play like she used to. But one thing she's done since she was a wee kitten is play with me when I make the bed.
Here's the game: first I throw the sheet in the air, and when it is slowly sinking all the way down she stretches out her front legs, pushes with her back legs and skids half on her tummy all the way to the pillows (tucking the sheet in, by the by). Every time I pull it tight she skids across the bed to my fists, then I go to the other side and pull there so she will skid back. She loves it when you lift her a little off the bed, then let it drop and she swats the sheet down all around her. Eventually we move on to the quilt and do it all over again. It takes about 15 minutes - she gets so excited she is snorting and breathing hard. Afterwards she needs a minute or two of reassurance and cuddling then she curls up and is out like a light.
My other cat watches us sometimes but you can tell she thinks it's beneath her.
What games do you guys play with your pets?