Make a slip knot and chain the desired bow width
Work rows of single crochet or half double crochet until the rectangle is the desired length
Fasten off and leave a long tail
Fold the rectangle accordion-style in the center
Wrap the yarn tail tightly around the middle several times
Secure the wrap with a few stitches or a knot on the back
Weave in the ends
Shape the loops evenly
Attach the bow to a hair clip, headband, gift, or project as needed