I sculpted 9 of them using my own paper clay for the sand and Creative paperclay for the chest. The "pearls" are actually glass beads. Everything is painted and antiqued with acrylic paints and then the bottoms have a rubber gasket-like material that has one side coated with a super sticky glue that never, ever lets go! Great stuff for protecting the bottoms of my sculpted art. I like it so much I bought a whole bolt of it several years ago.
First pic is closer to the actual colors of the card holder. The skull was painted to look old and the hat is purple with gold trim. Can't seem to find pics of the finished pieces, silly computer seems to have eaten them.