This project from Donaldson Workshop is a custom drawer box with a secret compartment in the center. The drawers all have stops so they cannot be removed. An object can be entered behind the drawers and rolled through a maze to reach the felt lined secret compartment...
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...
