Quite some time ago (obviously this will be at least 2 years since - usual Tony of Nurgle standard practice), I picked up the fantastic Old Death model produced by Enigma Miniatures with the intention of making it into a Daemon Prince of Nurgle.
I really like how the static pose of the creature implies loitering in the background (waiting escort the damned to Hades or some-such), while the wind swept robe adds a nice sense of movement. If he was a bit taller I'd maybe think of him as Mortarion as Daemon Prince. Perhaps it would be a more accurate reflection of a Grave Warden elevated to daemonhood. Either way, I think he adds a nice touch of visual variety to my mono-Nurgle daemon army... I've named him the Lazarine after a form of "spotted leprosy".