Have you seen this, my friends? It's a Rube Goldberg inspired wall in Germany that creates music when it rains, due to the mousetrap drain and gutter system with various sized metal cones. It's called the Funnel Wall at the Kunsthof-Passage in Neustadt.
I wish I could hear it play! It would definitely liven up our Seattle winters :)
{Image via Wet Behind The Ears by Vincent}