1-2" Flat Brown Pectin Seashells - Bulk Craft Shells Pectins are in the family of large scallops and saltwater clams. Many scallops are highly prized as a food source. The brightly colored, fan-shaped shells of some scallops, with their radiating fluted pattern, are valued by shell collectors and have been used as motifs in art and design. Bring the beach home with one of our unique seashells, offered in a variety of sizes. Whether it's a souvenir from a recent vacation, decorative accent for any room, or part of your coastal craft, these high-quality shells are some of the lowest prices around.