Rain Stick

It's raining...
It's pouring...
My desk is on the second floor of our building. Our building has a metal roof of some sort...kind of industrial looking. So needless to say, when it rains, even the tiniest little bit, it sounds like thousands of Rain Sticks. Right now it's really pouring and it's loud in here.
I kinda like it.

Rainstick
From Wikipedia, the free encyclopedia

A rainstick is a long, hollow tube which is filled with small baubles such as beads or beans and has small pins or thorns arranged helically on its inside surface. When the stick is upended, the beads fall to the other end of the tube, making a sound reminiscent of a rainstorm as they bounce off the pins. The rainstick is generally considered to have been invented in Chile, and was played in the belief that it could bring about rainstorms. Rainsticks are usually made from any of several species of cactus. The cacti, which are hollow, are dried by the sun. The spines are removed, and driven back into the cactus, like nails. Pebbles or other small objects are placed inside the rainstick, and the ends are sealed off. A sound like falling water is made when the rainstick is inverted.