Foetid bloat drone. The eye and mouth needle have been added and the carapace fly touched up a bit. This model is my favorite one from the whole set I think. :
Death Guard Foetid Bloat-Drone Bits/Parts - Multilisting | eBay
Foetid Bloat Drone and Poxwalkers | Painting for Profit and Pleasure | BoardGameGeek
Foetid bloat-drone for my Death Guard. What you think? More pics in comments : r/Warhammer40k