I am the crazy old cat lady, except that I am still young. My cats have had lots of toys over the years and this is easily the favorite. My cats go crazy for the Turbo Scratcher. Even my older cats, who have mostly given up little mousies and the like, still love this great toy.
The Turbo Scratcher is a round, plastic track with a ball inside. The middle is a scratchy cardboard. You place catnip into the grooves of the cardboard.
The cats scratch on the cardboard and chase the little ball around the track. My cats go nuts for this thing. I have seen my cats flip and dance wildly while chasing the little ball. The ball is just big enough that it stays in the track even when little curious paws reach down inside, but it's small enough to roll freely around..
This makes a great gift for someone who has just gotten a new cat or for a friend who has had cats for a long time. Or pick one up for the kitty cat in your life.