It's just a basic zigzag pattern crocheted with Bendigo Woollen Mills Classic in Mongolia, Rafia, Light Eucalyptus, Mulga and Fern. I had a seven colour change pattern and each colour was two rows. I did eight repeats and then one row of the light eucalyptus so both edges were in the same colour. It was a great winter work as it kept me warm while I crocheted.
I begun in February this year and finished it about one week ago. It sure takes a while to craft something big. Unfortunately I didn't check my gauge as I went. Didn't even think about it. When I finished and laid it out I realised it fanned out wider at one end. D'oh. My crocheting had gotten looser as I went. Fortunately, I was able to get out the iron and give it a bit of a steam blocking on the tighter stitched end so I shaped it back into a rectangle. Phew!
It should look good in their house though and since it's 100% wool it should keep them toasty warm too. I used a 6mm hook so the stitches are fairly big making it fairly light for a pure wool afghan. My sister also knitted them stripy socks using two of the same colours so they match and will make sure their toes stay warm.