My Sons Cake & Candy Supply 117 Main St, Saint Peters, MO63376 My Sons Cake & Candy Supply store is located on Main Street in Old Town St. Peters. It carries supply necessities…More for cake and candy making. Cake decorating items, icing bags, chocolate molds, sucker sticks and cookie cutters are just a few of the supplies available. Icing can also be purchased by the pound. Character shaped cake pans can be rented also. Candy chocolate squares can be purchased as well.