21:12

How To 3D Chalk Draw a Hole in the Ground

8:42

How to Create Sidewalk Illusions: The Chasm, from the Brain Hackers

9:30

How This Chalk Artist Creates Illusions on Pavement | Obsessed | WIRED

19:28

Chalk Artist David Zinn at the Ann Arbor Summer Festival #1

6:16

3d Pool 'How To' Demo

3:18

Color blending with sidewalk chalk

6:47

3D Rubik's Cube Chalk Drawing

3:05

Artist’s Chalk Sidewalk Drawings Will Mess With Your Perception