Amaco Marblex Air Dry Clay , Big Ceramic Store, BigCeramicStore, pottery supplies equipment – BigCeramicStore.com
Amazon.com: Pepy Premium European Air Dry Modeling Clay Terracotta 3 Pack 2.2 lb Bars, 6.6 lbs Total, Easy to Use Air-Hardening and Non-Staining Clay for Classroom and Montessori Sculpting and Crafts Projects :
Amazon.com: AMACO AMA46319S Air Dry Clay, Terra Cotta, 25 lbs.