It's funny that I've spent so much time browsing through PetCo to find creative toys for my cats. They really aren't that picky. Rufus will spend hours with a beer box. He makes quite a racket and he'll push the thing all over the house, but you can tell he's having a really good time. He also likes my cloth ponytail holders (or bands or rings or whatever they're called - my daughter calls them "hair thingies"). And I believe that I mentioned before that he loves an old terry cloth bathrobe belt. He really goes to town with it. He can get some serious feet action going with that thing.
A couple of months ago the cat toys were EVERYWHERE and I needed to vacuum. I grabbed the closest thing which was an empty Hefty Bag box and went all over the house picking up toys and putting them in the box. I set it out of the way in the bar room. Now we call it "the toy box." There's nothing cuter than watching Rufus paw through the toy box to pick out a toy. And like a kid, he takes things out, but never puts them back. And it's nice to have a place to put the toys when I vacuum.