Cut a piece of fabric 7 ½” wide x 3” long. Be certain that your cuts run parallel to the grain of the fabric. Check the grain by pulling a thread of the fabric from the short side right near the long edge. If you pull the thread all the way out of the fabric the empty space will create a cutting line right along the grain. Seal all edges with a very fine line of glue, especially if you plan to sew the garment.