Jellyfish

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 519.2 Hz, 13 cents flat of C5. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to make it swim. Hands-on: drag the bell and the tentacles trail behind it.

A jellyfish is a soft sea animal with no brain, no heart and no bones; its body is mostly water. It swims by squeezing its bell-shaped body, which pushes water out behind it, and it trails long tentacles armed with tiny stingers to catch its food. Jellyfish have drifted in the oceans for more than 500 million years.

Tap it and one strong stroke squeezes the bell and jets it up, trailing its glowing tentacles, then it drifts slowly back down. Pick a moon jelly, a sea nettle or a blue one in the Splash tab. With ✋ Hands-on on, drag the bell through the water: the tentacles and frilly arms trail behind it like chains, then sway back as it hovers where you let go.

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.