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The DIY LEGO Safe

This DIY Lego safe crosses the line from playing with a toy you loved as a child to fanatic obsession. The Lego Mindstorms NXT safe is not only an actual working safe, it's a 14-pound behemoth with a direction-sensitive dial that requires you to enter not three, but five double-digit codes. That's well over 305 billion possible combinations.

Check out the DIY LEGO safe in the video above, and if you think you're game to construct one on your own, download the MLCad--yes, there's CAD developed especially for LEGO construction--below.