Personalize your set of keys, a backpack, or a zipper pull with the Pepperell Rexlace Rex Head Key Chain Kits. Each kit comes with everything you need to stitch up your own custom key chain. A staple in crafting, the Rexlace plastic cord is highly durable, yet flexible so it is easy to knot together without breaking. The animal head decorations are hand-painted with incredible detail. Each kit includes one hand painted resin head, a metal clasp, two 10-foot pieces of plastic lacing, and instructions. - Pepperell Rexlace Rex Head Key Chain Kit - Gecko.