hah, toys are a waste of money. scrunched up pieces of paper and items you usually have trouble finding because kitty knocks it off the desk are the best toys.

the second best thing is other cats. they are constantly amusing each other, or tormenting, whatever you call what cats do to each other.

third best thing is other animals that are not cats.

oh and fourth, is windows. cats will sit and watch a very ordinary view for hours on end transfixed.