Keffiyehs, or Palestinian scarves, have been around as part of mainstream fashion for quite a while now, though long after they were an essential of peace activists' rally outfits!
Here are a few ideas of how to incorporate keffiyehs into your hijab style. This first video by Egyptian hijab stylist Yassmin Mohsen shows one way of wrapping it as a headscarf. I also love the idea of wearing keffiyehs or other square neck scarves in addition to the usual hijab wrap - especially with Spanish style scarves where they provide the necessary neck and chest coverage without compromising style, just as Yassmin is wearing it herself in this video:
This video from YouTube user chinchillitac shows more ways of wrapping the keffiyeh: