“This carbon steel rod type thing (the tag is aluminium pretty sure) that holds two metal marbles.”
Answer: "Knife sharpener. They don’t work well."
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...