Found 9th Dec 2017
Hobbycraft are offering a 3 for 2 offer on many yarns including chunky yarns. I got 6 balls of This ultra chunky yarn (deal picture) for £30.60 with free delivery and 10% student discount. Great Christmas idea. It should be possible to knit a lot with this much wool, maybe a blanket. Also take advantage of Topcashback or other cashback sites on top of this deal and get loads of lovely wool for your projects!