[Update June 30, 2008]
This pattern has been significantly revised and rewritten as a .pdf. You can download the .pdf here for free.
I've reintroduced this pattern with a newer blog post and another FO, here.
I've made this scarf a few times now and it's so simple and fun I thought I'd share the pattern. It's a great Christmas present and because of the larger needles takes very little time to knit. It's also a great pattern to learn the cabling-without-cable needles technique.
Yarn: a heavy worsted or Aran weight yarn, or, a worsted held together with a strand of mohair.
Here's an example with Paton's Worsted Merino in Olive Green with Artful Yarns Portrait variegated mohair.
Needle: Size 10 1/2.
Cast on 20 stitches.
Rows 1-4: Knit in K1, P1 rib.
Row 5: (First cable row) K1, P1, Slip four stitches onto cable needle and hold to back of work, K1, P1, K1, P1, then K1, P1, K1, P1 stitches from cable needle, then K1, P1 to end.
Rows 6-8: Knit in K1, P1 rib.
Row 9: (Second cable row) K1, P1, K1, P1, K1, P1, Slip four stitches onto cable needle and hold to front of work, K1, P1, K1, P1, then K1, P1, K1, P1 stitches from cable needle, then K1, P1 to end.
Rows 10-12: Knit in K1, P1 rib.
Repeat rows 5-12 until desired length is reached.
(This pattern is now in Ravelry, too!)