On 5/13/2019 5:01 PM, Jeff Liebermann wrote:
This might be fun to try on painted bicycle lanes.

"Town in Iceland Paints 3D Zebra Crosswalk To Slow Down Speeding Cars"
https://www.boredpanda.com/3d-pedestrian-crossing-island/

I'll check with Caltrans to see if this is a legal traffic control
device. It's not mentioned in their manual
http://www.dot.ca.gov/trafficops/camutcd/docs/2014r4/CAMUTCD2014_rev4_hires.pdf.