The site has an unusual take on Polymer Clay crafting. The site owner gives suggestions as to how to reuse half baked polymer clay. Usually, polymer clay in this condition has to be softened. When the polymer clay can not be softened many artists discard it. Half cured clay may become crumbly as it ages.
The site suggests that the clay be used as a filler material for beads or imitation stone sculptures. Chunks should be broken off the clay and baked. Then the chunks can be carved and glued into the desired shape. The pieces can then be painted and finished as normal. The clay can also be ground and colored to be used as a texturing material.