I've tried finding fatwood myself, but have had no success. So, where do you buy quality fatwood? I found some UniFlame brand at Home Depot. Six dollars for four pounds in a plastic see-through bag, and it seems to be good stuff. About thirty 8" long sticks.
http://www.homedepot.com/buy/uniflame-fatwood-pine-fuel-4-lb-bag-201274.html
I've also seen this in a six pound box for $18 at Meijer...
but I'm not sure if it's any better than the Home Depot stuff. For the same price as the six pound box, I can buy 12 pounds of the HD stuff. I'm not sure about paying a premium price for something I'm going to set on fire.

http://www.homedepot.com/buy/uniflame-fatwood-pine-fuel-4-lb-bag-201274.html
I've also seen this in a six pound box for $18 at Meijer...

but I'm not sure if it's any better than the Home Depot stuff. For the same price as the six pound box, I can buy 12 pounds of the HD stuff. I'm not sure about paying a premium price for something I'm going to set on fire.