Asteroid

Splashery stretches a drumhead over this Splash's outline, twelve inches across, and finds the ways it can ring. Its lowest is 359.0 Hz, 148 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.

Tap it to break it apart; its pieces pull back together.

Asteroids are rocky leftovers from when the planets formed, about 4.6 billion years ago. Most circle the Sun in the main asteroid belt, between Mars and Jupiter. They come in all sizes, from small boulders to worlds hundreds of kilometers wide, and most are lumpy, not round.

Tap it and glowing cracks flash, then it falls apart into 18 pieces that drift off, tumbling, with a puff of dust. Then gravity pulls them back together. Some real asteroids are rubble piles like this: loose heaps of rock held together only by their own weak gravity.

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