I was on a blog and saw a picture of feather extensions. Its basically long, thin feathers that you add to your hair like extensions. I like thin ones as they give that little bit of extra colour and quirky to your hairstyle. Its gives you that earth-girl look which is really cute. It will fit in with this years summer trends as its all natural and floral and feathers will fit well. Personally I like the brightly colours ones, it gives your air more of a fun bold look. Image how great they'd look while playing with the sand on the beach in the summer sun. type into Google 'feather extensions' and you'll get lots of sites that sell them. Here are a few to make things easier for you
http://finefeatherheads.com/store
http://www.sultra.com/natural-feather-hair-accents/ 
http://www.hairextensions.co.uk/advanced_search_result.php?keywords=feather+&x=0&y=0
http://www.featherray.com/