Amazon offers Prime members the Crayola Model Magic Modeling Compound 2-lb. Bucket, model no. 57-4400, for $13 with free shipping. (Non-members can spend $35 or more to qualify for free shipping; otherwise, shipping adds $6.90.) That's tied with our July mention and the lowest total price we could find by $3. The self-hardening non-toxic compound comes in four individually wrapped 8-oz. pouches.