Here's my TAST sample for Couching, last week's Take a Stitch Tuesday stitch. It doesn't look particularly attractive and the colours aren't very exciting but it was a useful exercise. The top row is some knitting braid couched with stab stitch, French knots and fly stitch. The second row is a bit of string couched with herringbone. The third row is my favourite: knitting wool couched with a zigzag chain stitch, then the last two rows are conventional couching over pearl cotton and fancy knitting wool.