Nice:
You might think that a Lego safe would be easy to open. Maybe just remove a few bricks and you're in. But that's not the case with this thing, the cutting edge of Lego safe technology. The safe weighs 14 pounds and has a motion detecting alarm so it can't be moved without creating a huge ruckus.
http://www.schneier.com/blog/archives/2008/11/lego_safe.html