Measure your waistline with the measuring tape. Measure all the way around -- pulling the tape firmly, but not too tight -- just above the widest part of your hips.
Cut a 9-inch-wide segment of fabric measuring in length to match your waist measurement. Use a heavy or stiff fabric, such as denim, pleather, canvas or corduroy.
Place the fabric segment in front of you with the correct side of it -- the presentable side that is brighter in color or features the pattern -- facing downward.
Squeeze a line of fabric glue along all of the edges of the fabric. Fold in all of the edges by 1/8 of an inch and press firmly. This creates a hemmed appearance. Let it dry for 10 minutes.
Turn the fabric segment over, exposing the right side of it.
Create a row of three grommets at each end of the fabric segment. To do this, use the clamp tool in your grommet kit and space each grommet about 3 inches apart. This creates a vertical row of grommets in each end of the fabric.
Snip a 24-inch length of ribbon from the roll. Thread the ribbon through the grommets like one would lace a tennis shoe. Lace it loosely.