Cernit Opaline oven-bake polymer clay, blue gray, Nr. 223, 56 gr
Cosclay SCULPT: Medium-Firm Gray — Cosclay
Amazon.com: Sculpey Premo Polymer Oven-Bake Clay, Gray Granite, Non Toxic, 2 oz. bar, Great for jewelry making, holiday, DIY, mixed media and home décor projects. Premium clay Great for clayers and artists.
Amazon.com: Sargent Art Polymer Gray Baking Clay, 1 pound block, Easy to Use and Soften, Safe & Non-Toxic, Used for all types of Clay Sculpting Projects & Crafts
Super Sculpey Firm Gray, Premium, Non Toxic, Firm, Sculpting Modeling Polymer clay, Oven Bake Clay, 1 pound bar. - Walmart.com