According to www.stylelist.com Disney Couture will be releasing Little Mermaid themed pieces (of course they said May and I have yet to see any of the items!)
This is a preview of what we will be getting: The item is called the Rainbow Mother of Pearl Necklace, and will sell for $145 at Disney Couture.
It's kinda cute, I like the illusion of scales. Supposedly the collection will also include a gold-plated sandcastle and treasure box pendant necklaces, pop-top rings with pearls inside, braided leather charm bracelets and jellyfish and octopus-shaped earrings.
So you can compare here are a few of the older items:
You can find most of the items on Ebay (now that they are a few seasons old) or here.
Okay, after much searching I found out that the collection will be released in August (just in time for my birthday.)
I also found some more pictures.