I recently heard of people who collect vials of sand. They have samples of sand from each beach visited.
Does anyone collect sand?
Does anyone collect rocks?
Southeast Asia Editor
We would probably not be allowed to bring sand or rocks back into Australia, and items made of untreated wood or other raw materials, and seeds, fruit, etc are a big no-no.
I try not to collect anything, if I started I wouldn't be able to stop myself! My friend, though, started a collection of walking stick shields (the small metal badges) from every place she goes - one day, she says, she will buy a walking stick to put them all on!