Often called "non-dry" clay, these wax or oil-based formulas never harden. They are used by professionals for prototypes (maquettes) or claymation. Non-Dry Clay - Modeling Clay - Sculpey.com

More expensive than air-dry; requires an oven and can be stiff to work with initially. 3. Oil-Based (Plastilina): Best for Practice

Beginner-friendly, inexpensive, and can be sanded or painted with acrylics once dry.

: An organic, all-natural option that is stronger than most craft brands but prone to cracking if dried too quickly.

Polymer clay is a plastic-based material that stays soft until baked in a standard home oven. It is the go-to for professional-looking figurines and earrings. Sculpey Premo Go to product viewer dialog for this item.