I made these potholders a few weeks ago, and am about to make some more.
I played around with lots of things -- they're the best size for practicing, and you get something useful in the end, too. The one on the right is quilt as you go, and the one on the left was quilted after I pieced the top. They both have different types of bindings and different loops. It's easier to see the loop styles on the back.
The next set (I'm about to make another pair) will have a combination of the binding method on the left and the loop method on the right. Any suggestions for filling? I used a layer of Insulbrite with a layer of 100% cotton batting. I was thinking of trying a double layer of old towels -- has anyone tried that?