Squigglish! is an iOS drawing app that makes the lines you draw wiggle. You can draw on a solid color canvas or on photos, and your creations can be exported to movies or GIFs. Like other projects of mine with Matt, it’s powered by the magic of Fourier series. You can download the app here, and look below for some sample outputs. I’ll be updating this gallery with some of my favorite Squigglish creations, and anyone who’s interested should feel encouraged to submit their faves!