Luna my youngest cat's favorite toy seems to be leafs. She brings them in from the garden and attacks and plays with them inside.
She has a load of of other cat toys, but the leafs seems to be on top of the list. Another human toy she plays quite a lot with are my children's swing ball. She jumps the ball, bear attack it and chase it around. My cats have a scratching post with a mouse attached to it, the mouse gets quite a lot of attention as well. She also loves playing with marbles and bouncy balls.
Her other most favorite toy are the other cats, she can play with them for hours, and then the fall asleep curled up in a heap.
