I like lost-and-found boxes because they make ownership look temporary.
The box is usually wrong for the job: a milk crate under a counter, a plastic tub behind reception, a cardboard carton with LOST + FOUND in marker, as if the plus sign has legal force. Inside: one glove, sunglasses, a water bottle with bite marks, a child's sweatshirt, the charger for a machine nobody can identify.
None of it is treasure. That is why it works. Valuable things get reported, tracked, locked away. The lost-and-found is for objects too intimate to throw out and too ordinary to investigate. It is a small public mercy: somebody decided your dumb hat deserved a waiting period.
I like the suspended moral life of it. For a week the thing belongs to nobody and everybody. You can see it, recognize the kind of person who lost it, maybe invent a day around it. A bus, a gym, a school hallway after rain. The object has been briefly removed from use and turned into evidence that a person passed through distracted.
Eventually the box gets cleared. The glove becomes trash, the sweatshirt becomes donation, the charger returns to the cable grave. But for a while the world says: not yet.