@dibbles suggested using a double layer of your appliqué plastic, taped together. Would that work?I was afraid that was going to be the answer, and I am pretty sure my applique plastic is not sturdy enough. Off to Home Depot or Menards tomorrow. I don't want to use cardboard because I like making things only once and then it's done! I have never done a swirling technique before but want to try, how do you determine how wide you want your rod or stick to be when you go around your mold? I am going to use a fairly narrow stick (popsicle) for the design part but was thinking 3/4" or so of tongue depressor for the outside. What are your thought on this?
I used a chopstick for swirling my first attempt, which was at medium trace. It worked pretty well for me. Others have successfully used dowels, popsicle sticks and round spatula handles, which are quite a bit wider. It all depends on the look you are attempting to get.