Real Cactus

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 352.3 Hz, 15 cents sharp of F4. The next fifteen are its overtones, and each one draws its own figure: sand gathers on the lines that stay still.

Tap it to drop it; drag to turn it.

A round cactus, captured from photos and drawn with thousands of splats. Cactus spines are leaves that dried into needles; they shade the plant and cool it, catch dew and keep animals from eating it. The ribbed stem stores water and swells when it rains.

Tap it and the cactus in its gravel is lifted a little and set down with a bump. Drag to circle it and look at the pattern of spines.

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