Firstly following the 'Geek' wristband from 'Stitch n Bitch Nation' by Debbie Stoller.
This led to my 'Boy & Girl' design - in several colours, and on different needle sizes.
And the wonderfully simple - stripes!
They need very little yarn and took me about 3 hours from cast on to bind off - and a cup of tea in the middle! [All wristbands are done in Rowan Cotton Glace on 2mm or 3mm needles. I just knit until i can wrap it around the wrist it is meant to fit, bind off then matress stitch together.]