Check the listing for details. Silicone Resin Mold Bundle Guitar Picks Dagger Starburst Cylinders 6pc Set. Condition: Used. Listed at 19.00 USD. Silicone resin mold bundle featuring a variety of shapes including guitar picks, acoustic guitar bodies, a dagger, and a large starburst or splash design. This set includes two cylindrical molds, one small and one large, perfect for casting 3D objects or jewelry components.