There is one shell that, for many of us, symbolizes all the beauty and exoticism of a tropical island getaway. You know the one I mean: the conch. That pink-lipped beauty with its spiraling core radiates island charm and reminds us of the wonder of island nature. (By the way, in the Caribbean and the Florida Keys, they pronounce the word "conk.") Unfortunately, in my home state of Florida, conchs have been loved nearly to death; all the conchs you'll see for sale at Shell World in Key Largo or a
