For the apron swap, I have to make a pot holder. I have never made one of these before and thought I'd try making some in advance: don't want to be caught at the last minute and . For the insulation, I used one layer of Insul-Bright heat resistant batting and one layer of wool. I followed the directions in Lotta Jansdotter's Simple Sewing book. It was very quick and simple to do! I think I'll attempt an oven mitt next.
Edit: Hoppo Bumpo asked about where to buy Insul-Bright insultated batting. This product was a pain to find, as was wool batting and any other non-flammable insulating products that would be suitable for making oven mitts, pot holders and the like. I have actually come to believe that such products do not exist in Melbourne - at all. What do all of the women in the CFA make their pot holders out of??! In the end I bought it online from Quilting Fabric Delights, but it looks like they no longer stock it either. Autumn threads was the only other place I looked for it as they were reasonably priced too.