I think the new "Put A Bird On It" is feathers (though it's really the same thing because feathers come from birds, right?). Anyway, I am so on board with putting feathers on everything. Here's a dress I made last week (It's the Anda pattern on Burdastyle.com. It's really, really easy):
And here's the feather I put on it (using machine embroidery)!
and here it is close up:
Some other examples of Putting A Feather On It (from Mod Cloth):