Diamond Locking wooden book [Need to see if I can duplicate this trick; there's a box out there somewhere and the center square changes color when unlocked]
Instructables: Picture of The Enigma Puzzle Box Enigma project?
How to: Make a Simple Wooden Puzzle Storage Box Mehr
Bee - Secret Wooden Puzzle Box-This secret puzzle box is a beautifully handcrafted creation, high quality workmanship, and made of different natural woods (all colors are natural woods. The box is a simple puzzle that comes apart
hey its a bigger da vinci box