"Wesley M. Thorsson" wrote:
>
> Cypraea also have problems with fading, particularly violet shades aroud
> the base. About the only way to keep the color is to keep the shell in
> a freezer. Of course, that makes it difficult to admire or show to
> friendd. We have had a number of collectors in Hawaii who had a freezer
> dedicated to keeping their shells that fade.
Those of us that display our shells on open shelves in the SoFla sun use
Scott's Liquid Gold. (It's WD-40 without the sticky.)