Stella McCartney Wants You to Be a Mermaid for Halloween.

Okay, maybe not really but how gorgeous is this set? I love the scalloping—a detail we've seen in her ready-to-wear collection over the years. I first saw this in one of the fashion mags from this month (can't recall which one) and a bit of digging also found...

...A PLAYSUIT!

or romper, whatever you want to call it. Either way, it's silky, smooth, and oh-so-pretty. I mean, I'd probably wear that for halloween. It definitely covers up more than most Ricky's costumes do anyway, right?

Bra, $125, Briefs, $60, Playsuit, $195. Available at Net-a-Porter.com.