I love the idea of a girl's emergency clutch, but I think a potholder is too bulky. What about a fabric clutch made in the same fashion as a paperback book cover? Not so bulky. perhaps it could hold more.
Photo tiles using resin. I started out with a trip to Home Depot. These tiles were only 19 cents each! It doesn't get much cheaper than that! And I bought a package of 72 felt mounting circles for about Not too shabby!