Click the above-left picture of Acid Butterflies applet to start the application full screen.
Butterflies on Acid
These colorful shapes make use of my Cubic Bezier class to draw an irregular polygon of beziers anchored to a circle. The circle isn't so obvious. For that matter, neither are actual butterflies, but, if you're uncertain of what a butterfly actually looks like, then you might be willing to accept that these are mutant varieties. Click anywhere on the applet to generate a new set of them.
Click on the picture above left to see a large version.