See:
http://www.instructables.com/id/Quilted-Pot-Holder/
http://blog.craftzine.com/archive/20...quilted_p.html
http://www.warehousefabricsinc.com/b...lder-tutorial/
And you will need two layers of batting with the Insulbrite.
If you see some plain inexpensive potholders that look like they'll wash, applique on those, they will still look great and get a lot of use.
Jois