Our older cats all seem to only like toys that are moving, though Tuxedo will play with those small furry mice that rattle inside by himself - those are his favorite. We toss them around for him and he just goes nuts.
(He won't play with ones that don't rattle!)
Lazlo and Sheldon go INSANE for the feathers. On a pole, not on a pole, an ostrich feather, regular feathers, furry feathers - it doesn't matter. They growl to, and run around with them (dragging the pole if necessary, LOL!) And the weirdest thing - we found these bright red feathers on a yellow string at the end of a neon pink pole. I know cats don't see reds very well - but for some reason, this particular toy drives both of them more insane than any other feather toys we've come up with.
Flowerbelle plays with anything, although her favorite is the ping-pong balls - especially if they're contained in something, like the shower or a box.
Spooky loves elastic. I bought lots of elastic pacs (1/8 wide) at Walmart, braided them together into long strings, and tie up the ends. There doesn't need to be anything at the end of it - just the knot will do. We drag it around and she goes nuts for it! I like braiding them because then it's thick enough she can't chew threw them.