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WATCH: Rainworks, street art that only appears visible when wet
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23
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2452
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April 7, 2015
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HOWTO make hydrophobic rain-only street art
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17
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4662
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September 25, 2013
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Wash-off reflective spray paint for cyclists
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14
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2311
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January 2, 2016
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The guy standing behind this invisibility shield made a few improvements
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14
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1489
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September 7, 2020
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Here's a bunch of notes left on windshields of bad parkers
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29
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1847
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February 4, 2019
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