Here is that piano made of bananas you asked for
I’m not going to make a joke about “playing with your food.” I think we’re all above that. But you should all know that some MIT students have developed a bit of tech that will allow you to make your excess produce into a musical instrument.
Actually, the MaKey MaKey is even cooler than that — I just wanted to pick an application that’s relevant to Grist, and I figured, food, right? But the truth is it can turn basically anything into a key (make key, get it?). That means not just banana pianos, but human drum sets, Play-Doh game controllers, cat-powered webcams, and whatever other totally impractical idea you come up with (though I think the water-bucket Dance Dance Revolution footpads in this video may be the impracticallest).
It’s the best. I’m actually typing this on a sandwich!