Fortified with electronic combination lock, motion-sensing alarm and motorized lock/door mechanisms – this LEGO safe will keep that marble collection nice and secure (well relatively, anyway). Nice piece of work from mostly LEGO NXT parts! Check out the video to see it in action – LEGO safe
That is one nice piece of work. My only dilemma is that kids may interpret it as a toy and will be frustrated if they can’t break the parts apart.