Where to find blue, glass amulet charm in NYC?

[nopeeing]

Does anyone know where to get these good luck charms? A friend lost his; it had sentimental value as well. He wore it as a pendant (it had a small hole for a string, or chain). Real glass, not plastic; I finally found plastic ones in a discount store. Also his was very small, roughly half-inch in diameter.
Most of the ones I see online are much bigger, one inch or more. Big plus if you know if the vendor/seller actually gets them from the Mediterranean region.



https://www.amazon.com/gp/product/B000VIUJZ2/