Here is the pattern:
http://www.berroco.com/exclusives/kable/kable.htmlAnd here is my finished project:

A little wonky here and there, but functional, and my first try at both cables and felting. The cables were actually really easy- only the first cable I did felt clumsy and then it was easy.
Tip- if anyone else makes this, I would highly suggest NOT doubling up on the yarn- the finished roll is incredibly thick, like yoga mat thick- part of it was because all my purl stitches were twisted (I yo'd clockwise instead of counterclockwise because I didn't know any better at the time) but I think it would still be too thick even done correctly. Maybe use slightly smaller needles if not doubling up, and just making sure the measurements were still the same. I used lion brand wool, and I had to throw it in the dryer to get it to shrink enough (felted it by hand, not doing THAT again

)