There are few things kitties like more than discovering toys around the house . . . even if those items weren't meant to be their playthings in the first place! For cats that love the chase, a ball's a toy box must have, but the costs can add up (especially when hidden away by wily cats within minutes).
Although there are plenty of round toys fit for frisky felines, many would love your plastic practice golf balls for their holes. If you're not the indoor golfing type, it's much cheaper to buy a bulk set of ping pong balls and gently use a nail to hammer your own holes for cats to get a grip. This price can't be beat: For just $16, you receive 144 of these and get to hammering.