This is a few weeks old but I still think it is wonderful and should be noted in my journal: A mechanically speaking piano.

Peter Ablinger has created software and built a piano with mechanical triggers, which together replays the note-transcribed signal of a voice. This effectively turns the piano into a fascinating, ethereal vocoder.

In this Youtube video you can clearly hear the piano speaking.

(Create Digital Music has an excellent, in-depth post on this.)