This case is perfect for looking inconspicuous or concealing your phone. You can even protect your valuables by putting them inside and placing the "book" on the shelf!

Step 1: Materials Necessary

Old book (This book has to be large enough to hold what you want to hold with it)
Mod Podge
Paintbrush
Very Sharp Utility Knife (Remember to be extremely careful, I learned this the hard way!)
A bit of time to spare, this project takes about 45 minutes to complete.

Step 2: Get That Book!

First, choose a book that you can bear to part with. If you really want to look unassuming, use a book that looks like no one would notice it. For example, a book titled, "This Book Does Not Conceal My iPhone, On Which I Am Playing Angry Birds", wouldn't be a great idea.

Step 3: Use That Mod Podge!

It's time to pull out that Mod Podge. Use a pen to prop up the very first few pages, which you will want keep dry. Then, use a paintbrush to smear the glue/sealant all over the other part of the side of the book, until it can no longer open. If any Mod Podge gets on the cover or back, you may want to wipe it off with a paper towel before it dries. Wait for the glue to dry, then turn to the last one of the Un-Mod-Podged pages and continue to the next step.

Step 4: Cut That Book!

Use a utility knife (Again, be VERY careful) and cut the outlines of two small rectangles near the top of your page (The more space you leave in the middle and bottom of the page, the more space you have for the main compartment). Then, simply pinch the middle of the rectangles you cut, and the paper should come out creating a hole. Keep cutting deeper, then pinching, until you are satisfied with the depth of your hole (the deeper you cut, the more space you have).

Step 5: Cut That Book (volume 2)

Repeat the cutting procedure in Step 3 for a larger rectangle in the remaining space on the page, and cut it deep enough to store whatever you want to store there (Money, Bombs [lol jk,], Phones, etc).

Step 6: Use That Book!

You're done! You can put anything you want in there. For example, I put a pair of earbuds and a five dollar bill in the smaller compartments, and an iPhone 5C in the larger compartment.

Source

Life hack #1 : Fake Book Case