Here's the Booga Bag I recently finished. I used Noro Kureyon #51. I ended up knitting the bag on sz 9 circs because I couldn't find 10 1/2 circs locally, and I already had the 9s.
I made the bag a bit bigger to compensate. I CO 42 sts and then knitted 42 rows for the bottom of the bag. Then I knitted about 80 rounds for the body of the bag. The finished dimensions (after felting) are about 8.5 inches wide, 9.5 inches tall, and 4.5 inches deep.
Overall, I'm pretty happy with it.