The Jacob's Ladder book is a perfect example of a project that appears to be difficult, but in fact is very easy to construct. I won't give instructions here, because there's a great tutorial over at making-mini-scrapbooks.com. Don't be afraid to change the size of your book or add additional pages. I used the same paper on both the inside and outside of my book, so you won't be able to tell from my photo how it works, but if you've ever played with one of these, you know how much fun they can be.
This book is on its way to someone who appreciates the unusual. I'm afraid I'm long overdue on sending her a birthday package. I hope she enjoys it!