A few months ago, I saw my son had drawn this in his sketchbook. I've never been so proud in my life.

https://youtu.be/RQdxHi4_Pvc

I remember drawing it and seeing other kids draw it and nobody knew where they had first seen it.

I was never cool enough to draw this. I knew how to do it, but my lack of coolness prevented my hand from putting pen to paper.

I used to draw a continuous, long S down the entire column of my black and white marbled notebook.