Shell SheltersShell Shelters Shell Shelters: Create these wonderful turtles with zipper opened bellies to hold sewing notions, threads, a childs treasures or to even pack jewelry for travel. Large turtle can become a childs small backpack or pajama bag by adding straps. A great gift project it includes embellishment options and your choice of three sizes of cases. Perfect for those gorgeous batik scraps as well as more modern prints and graphic.