This tool was built as a solution for an illustration-style wiggly border that our design team wanted to use on our website.

This works by generating an "organic" style, continuous SVG path, along with a non-scaling-stroke vector effect.

The dials let you size it as close as possible to the aspect ratio for the best effect for your content, but it can also snap to content (though usually one side will look stretched or too wriggly if the aspect ratio changes too much at different screen sizes).

Either way, it did its job.