I just wanted to toot the horn of an amazing miniature maker and all round awesome guy Andy Foster of Heresy Miniatures! He has two INCREDIBLE miniatures up for pre-order that will work as proxies for many a daemon and add some awesome variety in your army. I can't speak highly enough of Andy's customer service, casting quality, dedication to perfection and just all round being a nice dude :)
These models are lovingly crafted and I have seen the end products and they rule! Be sure to check out his entire range for loads of great fantasy and sci-fi wonders!