Mug Cosy

c6f  = slip next 3 stitches onto a cable needle, hold at front of work, knit 3 stitches, knit 3 stitches from cable needle

Using 8 ply wool and 4 mm knitting needles cast on 47 stitches.

Row 1: k1, p1, k2, *p6, k2, p1, k2, repeat from * 2 times, p6, k2, p1, k1
Row 2: p1, k1, p2, *k6, p2, k1, p2 repeat from * 2 times, k6, p2, k1, p1
Row 3: repeat row 1
Row 4: repeat row 2
Row 5: repeat row 1
Row 6: p1, k1, p2, *c6f, p2, k1, p2 repeat from * 2 times, c6f, p2, k1, p1
Repeat Rows 1 - 6, 2 times
Rows 19 - 23: repeat rows 1 - 5

Cast off loosely following pattern

Leave a long length of yarn before cutting off

Using a yarn needle stitch the top corners together.
Weave yarn down 1/3 of the cozy, using a 4 mm crochet hook, hook through the edge and ch10, join back to work another 1/3 down and weave end into the cozy.
Using the yarn needle stitch the bottom corners together.
Sew a button in the centre of the opposite edge to the crocheted loop.