Lollipop

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 480.8 Hz, 146 cents flat of C5, the nearest tine on the comb. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to spin it fast; the swirl seems to pour inward.

A lollipop is a hard candy on a stick. Swirl lollipops are made by twisting long ropes of soft, warm candy in different colors together and coiling them into a flat spiral before the candy cools and sets hard.

It turns slowly by itself. Tap it and the swirl whirls up to nearly three turns a second, so the spiral seems to pour inward toward the middle, then slows again. That is a trick of the eye: a turning spiral looks as if it is moving in or out. Pick its colors in the Splash tab.

Made in Splashery. Its code is MIT.

This link opens it in the Playground. To put it on your own page, add the element and one script tag. Every option.