These Tyranid terrain items were conceived 'round about the same time that I was working on the Tyranid barricades I detailed previously. I wanted to find a way of not just making Tyranid scenery but also a means of representing the diverse structures and creatures that may be present on a world that was being Tyranoformed/gutted for its natural resources. One idea I had (largely inspired by the shape and material of the plastic orange containers) was for balloon- or blister-like growths on the surface that would process the air in the atmosphere. They would expand to fill themselves with nice clean air, but when they contracted they would spew out a toxic, infectious fume teeming with microscopic Tyranid phage organisms.
