I agree that your best bet is the Pieces of Eight shop at the exit to PotC. They carry a wide range of things...from PotC specific items, to non-Disney pirate items. They have some pretty neat t-shirts, toys, decor, etc.
They've also recently come out with some dishware type items that features the Pirates (I think the logo is actually for WDW, but they were carrying some of these in DLR when I was there in late-May). The Port Royal shop (next to Pieces of Eight) carried some of these last time I was there.
http://www.disneystore.com/disney-p...irates-of-the-caribbean-7/mp/1354025/1000349/