Years ago, I was building an app that showed some tiny little houses. I needed a simple way to add animated smoke lines to the chimneys, and that's how this little script was born. It generates random squiggly SVG paths with organic, flowing curves. I am planning to write a bit more about the thought process behind it at some point.
Adjust the values below to create your own squiggly line. Some combinations of values work better than others, so take your time experimenting.