I have a metal desk at work with a fairly simple lock. I keep some things in there, like electronics that I don't want walking, but wouldn't break the bank if they disappeared. It is a metal desk, and the gravity-lock works by lifting a metal bar that engages a slot on each drawer. When you unlock it, the bar drops out of the slots.
This very simple Instructable shows you how to add a little extra protection to the lock.
What you need:
A rare-earth magnet.
I get mine from damaged hard drives.
Step 1: Apply Magnet
You can see the effect in the video below.
Step 2: Camouflage?
Part of what makes this work is that no one realizes there is a 2nd force working on the locking mechanism. A little determined investigation may turn up the magnet. Maybe a little camouflage would add to the effectiveness of this trick.
I have opened this up to any and all ideas on camouflaging the magnet. Join the KQRPNB Collaborators group. Video's or pictures of your additions encouraged!