Hahaaaa this is an interesting (not really) story!
When David moved to Flapjack he left behind a bunch of stuff including a hollowed out book that you could craft and do whatever you want to. I thought what the heck, why not make the Enchiridion? I think that was the initial planning as to why they got the book, but they never got to it. On a slow day I grabbed some screen shots from the designs and printed them all out and cut where needed. I thought it turned out great! I gave it to Pen as a gift.
Head over to Frederator's website and find the Enchiridion on there and just tweak it around. It's super easy. That, and I am not sure where I put those files..