A half shell was good enough for Botticelli's "The Birth of Venus." Can humble condiments require more? Four clam or scallop shells make a summery set of salt-and-pepper dishes. First, run four shells per set through a dishwasher, secured in the silverware caddy. For the base, turn two shells top side up, and hot-glue them together at the hinge. Glue together the other two shells; then lay them face up and crosswise over the base, and glue.