Three dollar prank... that's the way the article described it. This showed up on reddit, seems some poor sod took his car in (several times) for a strange noise. Seems the noise got louder, and stranger, as the car went faster.
When they finally found the cause, it seems someone had fastened a cheap harmonica to the underside of the car with zip ties. As the car sped up, it "played" the harmonica! 🤪
Eye watering "fun". I just knew some of my friends here would appreciate the artistry involved, even though no one here would ever dream of doing such a thing! 😁