Yep, you guessed it, more experimenting in Illustrator.
Today, tweaking this, distorting that, I created this intricate and delicate star/flower design from a single circle. I did not at any stage duplicate my circle to get multiple lines. This is just one single circle, somewhat changed. Once I had my base shape, I saved it as a pattern brush (I love the way brushes work in Illustrator), and here is the final result. If I can remember the steps, there may just be a little tutorial on this.