In 2025, Bad Sheep Yarns released monthly birthstone colors of the month. This is the design based on the May Emerald yarn. This pattern is for advanced beginners or intermediate knitters with familiarity knitting stranded colorwork with a chart. Other colorways used include gold, yellow and orange yarn. A full skein is needed for the headband and cowl body and about one additional skein for multiple colors. Great ‘stash buster’ pattern.