While it's easy to appreciate an invention that makes all of our lives a touch easier, it takes something truly exceptional to be both impressive and completely useless simultaneously. Such is the case with the curious (and gigantic) smoke ring generator, which looks to crank out giant rings of slowly fading smoke while onlookers beg for "just one more." The hand-powered device starts by launching a ghostly orb, which hastily slows and forms the infamous circle that brings back all sorts of gangster flick-related memories. Now, where's the step-by-step instructions to build one of these bad boys? Oh, click on through for the must-see video.

[Via MAKE]

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Inventor builds goliath smoke ring generator