One way to remedy that is to volunteer for (mostly cash-strapped) museums.
Our local North Museum, small by museum standards, has an even smaller
mollusk section.
It took nearly ten years to get one window shell display. But twice a year,
they have an open house for new members, including opening the entire
mollusk collection, and I can express my opinions without censorship. And
it does open quite a few receptive eyes.
After all, we only know  what we learn.

>The people who think seashells are rocks aren't going to learn or
>retain much from any exhibit. They are out there, but they are
>oblivious to the natural world and no display will change that.

P.S. A footnote to the Brazil information. The entire world is retaliating
against American tourists because of the additional costs, restrictions,
and chicanery imposed by our Administration. Chile has imposed a
$100/person entry fee. Does it make us safer? The tourist industry is going
to take another hit.

John Wolff
2640 Breezewood Dr.
Lancaster, PA 17601-4804
U.S.A.