To make a sash carrier, thread a needle with thread close to the color of your fabric. The thread needs to be doubled and about 18" long. Knot the end of the thread and come up through the fabric where you would like the carrier to be. Take a small stitch in the fabric to form a loop.
Holding the loop open with one hand and holding the needle in the other, pull a loop of thread through the original loop.
Pull the loop down close to the fabric.
Continue to draw the thread from the needle through the loop.
When the loop is the desired length, run the needle through the last loop.
Insert the needle back down through the fabric and tie off on the back. And there is your sash carrier!