Rain and snow aren't the only things to fall from the sky. Throughout history rare occurrences have been recorded of other less expected and surprising forms of deluge. In 2001, parts of India were showered with mysterious red particles that were thought to contain alien microbes.
The creators of this video and project describe it as a "game," which it isn't, really, but it is really, really cool: you make a sort of extra-firm Jello-like product by mixing water, agar agar, and some food coloring (optional, but why wouldn't you want your final product to be blue or pink?) in a mold. After it firms up, you put it on the "game board," actually a capacitive sensor with an embedded Arduino microprocessor, which detects different kinds of touch on the Jello mold and converts it into theremin-like noises. Fun (and a little appetizing)! Video below.