Cat toy suggestions?

We have a 6 month old kitten. She has one of these and LOVES playing with the ball. I saw a 3 teired one with more balls in it, so I plan on getting her one of those. What else?

She can't really have any of those tiny little toys like a little stuffed mouse or ball she can roll around the house because we have dogs that will take those and break them.

She also has a cat tower that has posts coming off the top with dangling toys she likes.