“Little black device with some odd vent-like holes I found stuck to my vehicle.”
Answer: "It’s a microphone for a hands-free car phone (could be a Bluetooth one to connect to your phone)."
this is how it is known in Mediterranean Europe, mainly in France where it originates
In Germany we call it Fußball.
no they don't you knob!
I always figured those were for soda cans. They fit perfectly.
not all explanations here are correct or make sense. Some are just wild guesswork. See #7.
I tend to lean on your explanation, makes a lot more sense than friggin "condiment bottles".
But yeah, I know, nobody cares...