I love these feathers which I heard about from Kandee Johnson (my imaginary best friend) the YouTube makeup artist. The can be washed, tried, curled, styled just like real hair.
This girl has really fun colored feathers but mine were more neutral
Even better is that they are relatively inexpensive. The starter kit and feathers were about $25. I would say they lasted for a month before it fell out. I'm all for the feather extensions and if you like this look, its pretty easy to put in. Here is a link to a video that shows you how to to it and where to get the supplies.