I'm scouring the web for FFX illustations (some of them from the ultimania guide) and then using a lot of photoshop tricks to tweak them until they look hand-drawn and "burn" them onto an image of a journal.

And then I'm using an FFX font to "translate" the actual journal entry into Spiran, pasting that into the journal, and mucking around with the text so it looks handwritten and slightly uneven as opposed to computer-generated.

For instance, I started with this (http://aeris2.blog.jeuxvideo.com/images/mn/1158760060.gif) Shiva.

I also used some filters and textures to discolor and "age" the photo of the blank book I was using.