STYLETHREAD -- LET'S TALK SHOP!

My DH isn't the best "independent" gift shopper, so I've been poking around the 'net trying to make a wishlist for him.  I'd really like a pair of cluster post earrings (all of my other ones are dangly).  I came across these that I *love,* but they're not available.

Does anyone know what direction I can point him in to find something similar?  These were set in silver, but gold is fine as well.  (I have sensitive ears) 

Lots of post earrings look too "grandma," but I thought these were perfect!  So sad . . .

Oh, and we've imposed a $100 limit this year (we're both students).  Any help would be greatly appreciated!