Does dollar tree modeling clay harden?
CRAYOLA Modeling Clay is a non-hardening art material . It is designed to be re-molded and re-used, and cannot be hardened. Painting is not recommended. What type of clay is best for making RPG models? Unlike “air-dry” clays, play-dough models are pretty useless for anything when dry. But the air-dry clays I have used [for …