I just recently purchased a couple of sets of Pan Pastels to color polymer clay. I love it. In this experiment, I created a leaf shaped pin with purple colored wire buds and applied several green and yellow Pan Pastel colors to raw clay with a soft paint brush and then cured it. The Pan Pastel is very durable as it did not easily scratch off.
Once cured, I used purple Prismacolor colored pencils to add layers and depth of color. Finally, I added some gold embossing powder to the edges and a bit sprinkled on the main piece to add a metallic tone and add texture. I like the way it turned out.
This was my first time using the Pan Pastel and so far I'm very impressed with how it works on the polymer clay. I'll be doing more experiments to test its durability and coloring abilities.