If you are looking for a purebred kitten and the person offers you breeding rights with your cat, knowing nothing about you, then walk away. This is a person who really doesn't care that their cat may be used to multiply the unwanted pet problem. Shelters often include the surgery in their very low adoption fees. Wow, there's a lot of choices out there, but some of the best are made at home. Try a twist of paper tied to a string.
Cats just love to hide and pounce.
One of the handiest commercial products is a circular shaped stand that has a small ball rolling around inside two edges where the cat can't dislodge it. They'll chase and play with this for hours, particularly if it is given to them as a kitten. The inside of the circle often has a cardboard scratching area, another valuable asset, as it gives them a place to vent their pent up energy by scratching to their heart's content. Many cats will go simply nuts over imitation fur mice. The natural instinct never really goes away, even if the only mouse they've ever seen, is on a cartoon.