Stan thanks for the whistle demo. I'd never thought of creating a visual library. I'd be interested to understand how you'd draw the whistle where the ball is reasonably visible. I suppose the ball would be more a shading object (not sure) . The whistle ball is quite complex looking with small domes on it and it's small. Any suggestions would be great.

I wish these episodes had come sooner. I did some warm-up studies and redid this exercise. I also applied some deformations from the earlier exercises. Additionally, I reviewed how to construct a perfect ellipse and added the process below. I realized I had always used the wrong intersection point when constructing it in detail. I've highlighted the correct blue intersection points here.

The thing about memory is it solidifies more when you can make more associations - such as when Stan referenced "a deck of cards" when trying to remember a specific proportion. Watching things like "How its Made" can help you remember the forms of objects. Tying manufacturing, functionality, and appearance altogether. If you can make a song, limerick, poem, mnemonic. Basically, the more you play the more it will stay.