Jelly

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 354.0 Hz, 123 cents sharp of E4, 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.

Drag it to stretch it; let go and it wobbles back. Tap it to poke it.

A jelly, or gelatin dessert, is fruit juice or sweet flavored water set with gelatin and turned out of a mold. Gelatin makes a fine, stretchy mesh that traps the water, so the jelly holds its shape but wobbles when you touch it.

This one always jiggles a little. Drag any part of it and it stretches toward your finger; let go and it springs back and wobbles on its plate. Tap it to poke it: it squashes and wobbles hard, then settles down. In the Splash tab, pick strawberry, lime, orange, blueberry, grape or rainbow, and choose whether it has fruit set inside.

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.