Cones? Nope, too many other things for my cats to play with: cat mint (close relatvie of catnip, but not quite as strong), dragonflies, June beetles, snakes, chipmunks... and those are things they don't eat! Then again, I don't have cats in my house anymore. This one won't even come in the house even if I invite her:

Maybe it's because the house still smells like Princess Lili, even though she died three years ago.