This is a pillow I designed as a present for a friend (pictured in its new home). The yarn is Malabrigo in Pearl Ten; the cable stitch pattern is called "arm in arm" and is found in the Vogue Stitchionary Volume Two.
For knitters out there: I discovered a neat way to join the front and back sides of the pillow, since I hate seaming. I used a crocheted chain stitch, inserting the hook into a stitch from both sides on each stitch. I did this with wrong sides facing, so the resulting crochet chain makes a pretty trim.