I was looking at one of Regolo Bizzi's [url=http://regolo54.tumblr.com/post/144085938157/amsterdam]spirally polygons[/url] and got wondering how to replicate it or generalize it.[br][br]Eventually I decided to use a string art kind of element, rotate that, and then dilate it. The sketch is pretty flexible and can make many different effects. Hope you enjoy it!