Makezine recently featured this video on how to build a multi-book secret storage box. Starting with a group or series of books you can conceal a much larger compartment. You can also use a jig or a scroll saw to avoid the tedious process of cutting individual pages...
CarRentingReviews has this picture of the 2013 Toyota Venza’s concealed console compartment. The top of the console slides back to reveal the compartment, 12 volt outlet, and a USB connection.
