True story: When my brother was in college, he played in the University of Illinois marching band. One year, the football team made it to the Rose Bowl. The band flew to Los Angeles to perform and do tourist stuff. On the beach, in a fit of eccentricity, he started picking up rocks from the beach and calling them seashells.
He brought the rocks back to Chicago.
Our grandfather picked him up at the airport and picking up his suitcase, said, "This is really heavy. What, do you have rocks in here?"
Good for him. There are a lot of places I've been that I was so sure I'd make it back to. Yeah, not gonna happen. But in a few of those places, I brought something back. One's mostly quartz, one's mostly basalt. With them, I can travel in time.
He brought the rocks back to Chicago.
Our grandfather picked him up at the airport and picking up his suitcase, said, "This is really heavy. What, do you have rocks in here?"
"Yes," my brother answered.