Suggested yarn:
One ball of Dale Garn Gullfasan 90% viscose / 10% polyamid metallic yarn – 1.75oz / 50g ball, 136 yds / 125 m.

Yarn note: Unlike most metallic yarns, Gullfasan is surprisingly soft and supple, so it works beautifully for both clothing and accessories. BUT…along with that softness comes plenty of slinkiness. Left to its own devices, it’s inclined to slink right off the ball! So, don’t discard the rubber band that you’ll find under the ball band. After you carefully let out several yards of Gullfasan, put the rubber band back on the ball, to keep the yarn from slinking away from you.

Suggested crochet hooks:
For main portion of scrunchie:
One size D/3 / 3.25mm hook. (Use whatever size hook gives you pleasing fabric.)
For optional beads:
One size 10 to 12 / 1.3mm to 1.0mm hook (or whatever size is small enough to fit through your beads.)
Notions:
1 elastic hair band. Optional: 6/0 “E” size (or larger) glass beads.

Gauge: My samples are about 28 single crochet stitches per 4” / 10cm (i.e., 7 stitches/inch), but getting an exact gauge is not crucial with this project, so feel free to work your Sparkling Scrunchie at whatever gauge you like best.