Sand toy library?

Beach Toy Library: Borrow a sand toy, leave a sand toy

"...in Alameda, at the entrance of a charming estuary on the west end of town called Crab Cove,
there's a Beach Toy Library. You can 'check out' a sand-friendly toy to play with out of the wooden box, or leave one that you found."

[Now that's an unusual realia collection!]

From:   https://boingboing.net/2018/06/26/beach-toy-library-borrow-a-sa.html