I love those sunglasses!
I have a new d.i.y. that involves the typical spike headband with a little twist: instead of using the usual metallic tone spikes I have used czech pressed glass bead spikes. They come in every color/pattern in the rainbow and can have opaque/clear/or matte finishes.
Supplies:
czech pressed glass spikes (pictured in tanzanite, 6 count)
thin clear plastic headband
E6000 glue to attach
photos my own