BM Necklaces

Help!

I am looking for necklaces for my BM's. They are going to wear a strapless floor length black dress, with a sash in a print called cranberry stripe. (It is just very small stripes with different colors of red in it)

I would like to get them a funky necklace to wear with it. Does anyone know of any good websites for necklaces. I am looking to spend less than $75 if possible.

Thanks!