Soft Plastic Drop Shot Leech Worm Mold Soft Bait 4 Inch Bugmolds USA - 1 Cavity Mold. Bugmolds USA offers a high quality stone mold for 4in soft plastics drop shot worm baits. This mold is a single cavity piece that produces one shaker finesse worm type bait soft lure that will have impact on Bass, Perch, Walleye, Crappie, Trout, Panfish, Bluegill and a lot of other fish including saltwater. We recommend using lubrication for our stone molds and an injector size for this cast mold of 5/8in. Create a large variety of soft plastic baits in colors of your choosing! Great inexpensive durable molds that are compatible with plastisol. Make your own fishing lures with Bugmolds USA!