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How This Chalk Artist Creates Illusions on Pavement | Obsessed | WIRED
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Color blending with sidewalk chalk
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Fun Street Art Illustrations by David Zinn
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David Zinn: Street art that washes away in the rain - BBC News
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30 Artists Taking Pottery To The Next Level
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Sidewalk Art Only Shows Up When Wet
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3D Chalk Art Step-by-step
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