The S for sterling is created by three brush strokes (top and bottom represent business opportunities going both directions (asia to us: us to asia--These are represented by the red dots). And the middle stroke forming the S is representing the ocean.
Happy to take suggestions, or use different colors, fonts, etc. upon request.
thanks for the feedback and request.The S in the new ones formed by line and circles can represent yin/yan, as you stated or also two countries separated by water or two countries connected by non-directional path. #88 can since it is within the circle (circle of course can represent grouping, or continuity, or further the yin/yan concept or the world.....
Pls let me know if you have any other requests (including ones for fonts, colors, additions, subtractions or....). Happy to try the variations for you.
142 forms an S, a P and a wave all with the same form.
Just a note that in the yin/yan, calligraphy stroke with the dots also form an S and a P. Again, along with the wave formation and the linking of two different places in a bidirectional exchange.