Art: These Seashell Craft ideas are a great way to preserve those special holiday memories. Turn them into Ladybugs, Rainbow Shells, Birds, Fish or Mermaid Necklaces. You can even show the kids how to Grow Crystal on Seashells as a science experiment.
white -Puka Shells: "In Hawaii, the wearing of puka shells was traditionally thought to ensure a peaceful and safe voyage, especially for sailors on a long journey, so puka shell necklaces were worn by those who had to travel at sea." -via Wikipedia