My hair is even shorter now (urchin cut, similar to the icon) so there's not much I can do with mine, sadly.

Beaded hair clips? I'm intending to make a few for me (or for Middle Niece). The way it works, you get some hair clips which have a hole in the end so you can attach things to them (or maybe a bobby-pin would work too). Then you make some beaded dangles and attach them to the hair clip, and slip the clip into your hair. That kind of decoration works for any length of hair. With the nice beads you can get at your local craft shop, you could make something tres elegant, I think.