These days it might not be something that comes up when you’re young, but people past a certain age (probably at least in their 30s or older) remember the concept of turning a book into a secret box. This guy turned a book into a case for his girlfriend’s Kindle, and did a pretty good job too. Not only does this have a certain type of style to it, the book acts as a pretty resilient protection for the Kindle too. He even rigged it up so the book’s cover will still auto turn the Kindle on and off when the book is opened to access the Kindle.
Check this out.
All in all, a pretty cool hack.