The seashell currency is such a genius concept, though. Like, I remember when I used to sell fruit to make Bells in-game, and when I ran out of fruit to sell I started selling seashells, which didn't give you nearly as much in return, but it was like the second best thing.
I don't know how much thought you guys actually put into it, but I can appreciate that little detail.
Not yet. The staff have always said they're planning it, though, which I'm looking forward to ('cause I miss being able to display all of my birthstones).
They add new ones from time to time, and rarely they restock it. Just gotta be patient. It's always worth the wait!