A Book Safe
Head out to your local used bookstore (I got mine at a Goodwill) and find a cool title that'll accent your magickal library, but is not actually "magickal".
Bore the innards out of the book with a razor blade. Personally I was cutting out 2 and three pages at a time...but becareful...the razor is SHARP.
Glue the pages together with glue (wood glue would likely be best, but I used Elmers white glue)
Place secret objects in your book (a small handgun actually fits in mine...) then put the book up on your shelf for safe keeping!