Here’s a fast and easy DIY on how to create fun, colorful friendship necklaces for you and your best friend(s). Give them as gifts for Galentine’s Day and tell your girls how much you love having them in your life! Sculpey Polymer Clay Small Eye Hooks Necklace or Ball Chain Heart-Shaped Cookie Cutter Small Rolling Pin or Wooden Dowel X-Acto Knife 1. Take off a section of clay and start rolling it with your wooden pin onto a clean, dry surface.