Do you have any idea where else they can be purchased except aboard a cruise ship? I have a seahorse necklace I bought awhile ago & I love it, recently got my ears pierced and would love some earrings to go with it. Don't want to take a cruise just to see if they by chance have a pair. Any suggestions? The only thing I could find on line under the Mishima Opal was the post from the lady who purchased a necklace on a cruise ship like I did.