Mod Request: Rings

I know at one point two years or so ago Sean said that there may be ringed planets int he game. Not gas giants, but ringed planets. I'm pretty sure they aren't because otherwise someone would post a pic.

If not, is there anyone here who is currently able to mod who could experiment and see if they can create any sort of rings around planets? I suspect that these would look very cool from the ground on another planet...maybe there's a technical reason why this is difficult in the game? I dunno...