My Tiger plays fetch also. He will bring us back balls, his stuffed animals and most recently has started carrying around a wand with string and a feather on the end toy (it's in one of the pics below). Literally- he will pick it up in the middle and drag the thing around with him. He will find it wherever it is in the house and bring it to us to play with him. And his new sister will chase the feathers as he is dragging it!
New sister... that's right, we got a new kitty a month ago. I just haven't had time to post pics of her before. We named her Maia (pronounced My-ah). It took her a bit to come out of her shell, but now she will follow me around the house and curl up next to me. Tiger and Maia seem to be getting along. They will occasionally wrestle and play tag, but they also spend time napping next to each other on the bed. Here are some recent pics.
Tiger:

Maia:

Together:
(I heart my kitties and my digital camera).