My work desk (which looks similar to the above) has two pull out drawers on the right that I wish I could lock, but can't. As you can see they just have handles in the middle and no key locks.

Anyone have any suggestions to how I could possibly set up something to lock them?

I trust everyone I work with. Our GM is in the office all the time and our office is locked when no one is in it. But I would like to leave some stuff in it when not around and feel the added protection would help prevent a theft.

Thanks!