I have a logo!
Astute readers will notice that the test code I posted 2 entries ago is the same code that renders the yellow spikey things in a circle. Except that the final version used 300 steps instead of 70, and the other values were tweaked too.
And, by the way, since the rendering was script code, I was able to fiddle with those numbers *live* and see the changes immediately. Interactive programming rocks. I think it might be worthy of writing a tutorial article, since it rocks so much.
Anyway, time to write a game.