A new(ish) miniature on display at the Forge World Open Day last April were these appropriately disgusting Blight Drones of Nurgle.
A Daemon manifesting as a machine, these formidable daemon engines of the Plague God poison and corrupt the battlefield.
Though not a Chaos player I do think Forge World, well Daren Parrwood, has designed a wonderful model here. Very unique and clever.
See all my photographs from the Forge World Open Day 2009 in this gallery.