My 2011 vert is missing a rubber weatherstrip plug from the passenger door rear molding. It looks to be a rubberized plastic. I can find the trim piece ($119, yikes!), but there isn't a separate listing for the plug. I'm afraid it might only come with the molding piece. Anyone have any leads or extras lying-around?

 

Might be able to find something similar at a NAPA parts store, they have a pretty extensive selection of fasteners, grommets etc.
Also if you have a dealer nearby just show them what's missing, they may have a stash in the service dept. Might even try a Nissan dealer if your Infiniti shop isn't close.

 

Might the same as used in the fender liners. Dealer most likely has 'em, I paid 50 cents each for my Miata.