Since I had two identical models I decided to do a bit of conversion work on one of them. Since my favorite Chaos faction is Nurgle I decided to model up a Nurgle Soul Grinder.
To fill in the spots where I lobbed off the horns I ran some guitar wire to the back of the model where the smoke stacks usually go. I then filled in my gaps with green stuff (not pictured) and let it all set up for painting.
I didn't go too Nurgle crazy on this guy but I think it is ok. This is a more subtle conversion and I think it looks pretty slick.