Some new-to-me sidewalk chalk art by Kal Zakzouk:
If it got you thinking "What's up with that triple yin-yang in amongst the eight trigrams?" Wikipedia had some related ideas: Tricolored Taeguk, Tibetan Gankyil. (or could be artist noodling around with designs, who knows (Making fun of wanna-be billionaires in search of "three commas"?))