Gallery: Watch: A Creepy 'For Rent' Sign That Follows You Around

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    "For Rent," a recent installation by Niklas Roy, is a for rent sign that relentlessly follows pedestrians passing by an empty storefront. *Photo: Niklas Roy*
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    Here's a sampling of Roy's other projects. This is a tiny robot he built to [clean his floor with a toothbrush](http://www.niklasroy.com/project/142/roboter_reiniger). *Photo: Niklas Roy*
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    Here: a device for drawing digital images--[made entirely out of cardboard](http://www.niklasroy.com/project/149/cardboard_plotter). *Photo: Niklas Roy*
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    Another empty storefront project, this one gives passersby controls for splattering paint on a canvas inside. It's called "[Instant Art Career](http://www.niklasroy.com/project/156/InstantArtCareer)." *Photo: Niklas Roy*
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    This is a detail shot of Roy's "[Perpetual Energy Wasting Machine](http://www.niklasroy.com/project/137/perpetual_energy_wasting_machine)," a contraption that sent an elevator up and down unceasingly. *Photo: Niklas Roy*
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    And of course, the tubes of the [Ping Pong Ball Suction Construction](http://www.niklasroy.com/project/124/ping_pong_ball_suction_construction)--built for sabotaging games. *Photo: Niklas Roy*
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