Make these cool pens.
Preheat oven to 250 °F. Test temperature with oven thermometer for perfectly cured clay. Condition all clay by kneading until it’s soft and smooth or running it through the Clay Conditioning Machine for several passes on the widest setting. Fold the clay in half after each pass and insert the fold side into the rollers first.
Bake at 250 °F for 15 minutes. Sculpey III usually bakes at 275 °F but to avoid distortion bake the pens at 250 °F. Always check the accuracy of the oven by using an oven thermometer. Use a timer to avoid over baking. Over baking may cause your clay covered pen to darken. Use an oven-proof baking dish lined with index cards. Do not exceed the temperature or baking time so you do not melt the pen. Do not handle the pen until it is completely cooled. Replace the ink cartridge when cool. To push it in completely, press the ink tip into a layer of something soft and stand the pen up. Press the clay cover pen case down onto the ink cartridge.