Bamboo

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 830.3 Hz, 99 cents sharp of G5, 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 make the new shoots grow up tall. Hands-on: pull a stalk; it sways back.

Bamboo is a giant grass with tall, hollow stems split into sections by rings called nodes. It is one of the fastest-growing plants in the world: some kinds can grow almost a meter in a single day. People use its strong, light stems to build houses, scaffolding and furniture.

Three young shoots sit on the ground. Tap it and they shoot up a section at a time, each new section sliding up out of the one below with a hollow knock, and a tuft of leaves opens at the top; later they sink back down. With ✋ Hands-on on, pull a stalk and it bends after your finger; let go and it sways back and forth and settles.

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.