Never have I been so tempted to try my hand at carpentry than when I viewed this project by Redditor Eclipse_007: The Hidden Mines of Moria Door, from Lord of the Rings. (Click for DIY instructions!)
It looks like a blank wall until someone touches it. Then it lights up a fluorescent blue and swings open to reveal a basement movie room. My dearest brother Brian, I hear your basement is still unfinished . . . soooo, what do you think?