experiment with different ways to add color. by Emily May 20, 2020. by Emily May 20, 2020. Air-dry clay is a great product to start with, especially if you’re working with kids. With this new challenge before me, I decided to start experimenting. A con to building with air dry clay is how fragile it can be. Once you have your desired color, snip the edge of the bag, using it as a piping bag. Once you have mastered polymer clay, you can then go on to paper clay or air-dry clay and see which works for you from there. After working as a children’s book illustrator, she had the desire to work in 3-D, leading her back to air dry clay. Activa Hearty Clay <