I actually had a really hard time finding these colors in my normal yarn haunts, so I ended up going to the most amazing yarn shop ever - the Yarn Garden in Hawthorne!!! Huge selection of tons and tons of great yarns at all different price ranges and really nice sales people. People from Portland are probably tsk tsking me right now for not having gone sooner, I have heard that it is great, but seriously I didn't know that it would be that great. Worth crossing the river for this place.
I'm doing this with Cascade 128 chunky wool, which will be nice and soft on the bum, making it more conducive for meditation. Side note: I love making granny mandalas! So fun, so pretty, and so easy. This is the ultimate in instant crochet gratification. For more inspiration in the mandala department check out Crochet with Raymond. I would say that Alice (Crochet with Raymond's author) is hands down the Granny Mandala queen.