When my stash of embroidery floss gets out of control, I tie skeins together to make custom balls of crochet thread. For this cowl, I made a ball of about two dozen skeins of floss in shades of pink and magenta. I alternated light and dark shades so the finished project would have a variegated look. The pattern is a lacy double crochet-chain stitch combination.
With a size F hook, chain 150. Slip stitch in first stitch to form ring.
Round 1: Single crochet (sc) in each stitch around. Slip stitch to join the last stitch to the first stitch in the round.
Round 2: Chain 5, skip 1 stitch, double crochet (dc) in next stitch, (chain 2, skip 2 stitches, dc in next stitch) around; end chain 2, slip stitch in 3rd chain of starting chain. Repeat Round 2 until the cowl is the desired length. (Mine is 10 inches.)
Last round: Chain 1, (2 sc in chain-2 space, sc in dc) around. Slip stitch to join the last stitch to the first stitch in the round. Break off thread and weave in ends.