This circuit is for my "Possessed Jack-in-the-Box" buildathon entry. When you knock on the lid, it plays "Pop Goes the Weasel" on a passive buzzer and turns the handle with a hobby motor/gearbox powered by a TA6586 motor driver chip. Sadly, I did not have an adequate power supply to run everything at once, so the physical build does not completely work, but it works in the simulator