BRONX: XS 807 Polymer Clay Jewelry. Mold and form polymer clay into an endless variety of jewelry components that can be assembled into one-of-a-kind creations. Learn the basics of using this technique, tools, textures and more. Two Friday sessions: March 27; April 3. 10 a.m.–1 p.m. $12 includes registration and materials. R. Demers.