Sometimes you can find them on ebay, but the problem is the shipping costs. Punches are soooo heavy and they usually cost a lot to ship.
I've had the best luck with coupons from Michaels, Joanns and Hobby Lobby, and buying them in person at the store. And also, sometimes they are on sale in those stores.
Bugga in OK
"Be kind whenever possible. It is always possible." Dalai Lama