iKnead music

If you love playing with plumbing and making music, why not combine the two pursuits with a flash game called La Pâte à Son (which roughly translates to "Sound Dough") where you build plumbing that shoots little beans through horns and strings, bounces them off drums and plinking metal pieces. You can swap out the pieces, adding new ones that slide by on a conveyer belt, and even use a donut-shaped tool to flip the beans around to get some weird feedback.
Voila! In a few minutes you've just created music à la Bjork's "Dancer in the Dark," where the clinks & blinks of machines become rousing melodies.

Link to intro page. When you load the flash program, it's 2.5 MB, so be a bit patient.