So....I decided to make my own.
Step #1: Pick the proper book. It needs to be similar in size to the device it will house...and it needs to have a decent title. You're going to appear to be reading this particular book for...well...possibly the rest of eternity so you might want to avoid titles like The 24 Hour Diet or The Beanie Baby Handbook. I went with Agatha Christie's Curtain. Can't go wrong with Hercule Poirot. I also picked out fabric to line the book with that compliments it's colors (I like a festive lining). Walmart has lots of beautiful fat quarters. I actually used a fat half but could have gotten away with a quarter easily.