I love participating in knitting challenges. They make me think outside of my box (which I desperately need at times!)
One of my favorite on line sources for yarn is Eat Sleep Knit (ESK). Since I will never, ever run a marathon, the closest I will get to one is a Yarnathon. This I could probably keep up with much to my Big Guy's dismay.
I am on the Roboknit team. And our challenge this quarter was to knit something Robot