Necron Basing

Hi all just a quick post. I have nearly finished painting up 10 necron deathmarks (just need to paint the eye and a few extra highlights). I have just realized that i have yet to base any of them. So what do you think i should do for the bases? I want to do something a bit different but still needs to be relatively quick and simple. Feel free to leave a comment and let me know what you think i should do for them. Hopefully i will get the pic quality sorted out soon.