To all of you convinced there's no such thing as a perpetual motion machine, behold Benjamin Shine's brilliant Rekindle candlestick holder that slowly but steadily turns into a brand new candle as it burns and melts away.
Actually, 'perpetual motion' might not be the best description for Shine's creation since you'll need a new wick for the reborn candle. And since the flame is generated by burning wax vapors, the candle will actually get a little smaller every time it burns all the way through.
But before that happens, the Rekindle should let you use your candles again and again, which is particularly if we ever face a winter where storms shut down cities, or if the robots rise up against us. If you want one—in your choice of stainless steel, anodised aluminum, or porcelain—you'll have to contact Benjamin Shine directly. Or live with the fact you're not using candles to their full potential. [Benjamin Shine via DudeIWantThat]