Dexter's mom: professional hand model

What does it mean when a company uses a hand model with fingernail polish in a pattern like Showtime's Dexter's mother was wearing when she was killed?

Oddly, this isn't an ad for nail polish.

So this must be the ring-bracelet combination you want to buy when you think your hand might not be connected to your body much longer.

What makes this extra odd is it's a neat tie in with one of the cliffhangers at the end of the last season.