These wristbands are a great introduction to knitting in the round and simple colour work. Want to keep it simple, why not knit some in one colour?
Pattern includes a link to a great knitting in the round tutorial.
DK yarn, Black & Violet 25g of each
Stylecraft Special Double Knit, Shade 1002 Black
Stylecraft Special Double Knit, Shade 1277 Violet
3.25mm double pointed
To fit teen-adult wrist