To stimulate your cat's love of exploration, consider taping together a series of boxes. Cats love to explore dark tunnels and byways. Start with two typical square boxes and cut two kitty sized holes in the sides. Hook them together with a long rectangular box. You can get as elaborate as you like, but make sure your cat can navigate the inner depths easily and create some windows for light.
"Cats look beyond appearances--beyond species entirely, it seems--to peer into the heart."
~ Barbara L. Diamond