Last week I stopped at Joann's. They had 3 sizes of hex punches, and amazingly they weren't on sale, so I went home to print out a coupon. The next day I was running errands and found myself by Michael's. Sure enough, they had the exact same punches, the exact same price, and they accept Joann's coupons.
The smallest one would make about a half-inch size hexie, I'm guessing. I bought the largest one which has 1" sides.
[ATTACH=CONFIG]479940[/ATTACH][ATTACH=CONFIG]479941[/ATTACH]