I make these 50 Caliber pens to hand out to my Soldiers who stand out and do great things each and every day. I just turned these 10 over the weekend. Material starting from lower left: Blue Aqua Pearl, Scarlet Rose Lucite, Cocobolo Wood, Blue Tru-Stone, Green Tru-Stone, Black Aqua Pearl, Metalic Gold Resin, Metalic Bronze Resin, Phantom Lucite, Burl Resin mix.