The WoolenRose
Patterns available as Ravelry Downloads
Crochet: Kerchief
You can wear your bandana tied around your neck as a cowl or use it to cover your head as a hat.
Crochet: Shawl / Wrap
My sample has been made with a 8 mm (L-11) and 300 g (690 m / 756 yds) super bulky weight yarn and my gauge was: