Before it moved into full-fledged fashion week territory. See:
The buttons really add interest to this grey shirtdress from adam + eve.
And you may remember this fab trench from Alexandre Herchcovitch
A few (somewhat) more affordable buttoned-up items:
This military-inspired bag from Cynthia Rowley:
I love the fact that these leggings from LaRok have this extra detail, which makes them a bit more interesting than usual...however, $50 ($98 originally!) is a bit too much to spend on leggings which are (hopefully) on their way out.
Finally, an etsy boutique called Wired Vintage creates jewelry from vintage buttons.
These bakelite earrings are fun:
And I think this chunky bracelet is great: