Display bits of fabric that you like instead of keeping it in a box. Fabric is art in itself. You can find embroidery hoops all the time at garage sales and thrift shops! Maybe even paint the hoops to give a little color to the fabric hoop wall!
Spray all of those leftover shells with silver spray paint and you have an expensive looking decorative item! (In the process of completing craft project with spray-painted shells and looks fantastic so far!