My cat's never actually been a big fan of toys. We've got her many, many toys, but she always ignores them in favor of laying down and sleeping, or going outside. There have been a few stuffed animals here and there that she'd attack or cuddle with, but beyond that she's never had many toys. However, she will play with string. She doesn't actively chase it, but if it goes right in front of her she'll attack it and watch it. She'll also attack your hands through the banister when you're going downstairs. It's kinda funny, really. Just pop your hand out, and she'll bat at it. Not in a "I'm going to tear your liver out and eat it right in front of you" sort of way, it's more of a playful way. She'll sometimes bite it, too, but never hard or often. Her claws, even while playing, will give your hands quite the beating, however. It's especially fun when she gets one of her claws stuck under your nails and tears it away.
