This is a smoking goods product, handly made and sold in some events. Contains silk and cigarette holders and a 3D printed grinder. For the grinder, I first created a 3D prototype with the help of @wipitgoods. Then, I glued three prototypes together inside a small box to make a silicone mold. Using this mold, I poured resin mixed with a catalyst and, after a few hours, I had the final resin grinder ready.