Minecraft Gallery is currently running an Indiegogo fundraiser to send them to Minecon 2013, where they can interact with the Minecraft community to get new ideas. For a $10 donation, you can get a free digital copy of the book as well as your name on their website. For $40, you also get a softcover version shipped to you (if you live in the United States, that is). The funding options go all the way up to $750, which grants you the title of publisher and your own logo on the back page as well as lots of other awesome stuff.
If you are feeling generous (or just want a cool book), head on over to the link above and take a look at the details.