Alright, this might be better in the questions forum, but here we go:
Meantioned in the newest devlog entry is the fact that you could have a "dwarf lung man" made from lung matter. Given the ease of modding and this bodypart system that's being brought in, would it be possible (is it possible now, even?) to create a race or plant material people that infect other beings with their material to spawn.
For example: adventurer A (Dwarfy McFunnyname) is hacking through a jungle when he comes apon what he thinks is an oddly place topiary of a dog. It is, in fact, a dormant plant being (in this case a dog who's had it's entire body replaced with the material) which bites him on the finger and then is promptly dispatched. This wound lingers like an infection (another proposed addition to the game in the devlog) and behaves like a poison, spreading through the body. (Self amputation would be cool, too, where you cut off the infected/trapped body part to save yourself, only to cause a deeper infection and so on and so on.) The skin and flesh that was there would be replaced by plant material.
So you see how this is a bit of a question and a bit of a sudjestion. Because it'd be a great way for zombification to spread on some worlds; it starts at a demon of the undead/death (what-have-you) who infects everything that worships it in person. These cleric/zombies then go out and "convert" others (with a bite the turns the body into undead material and destorys the brain). The next step, of course, is to be able to control these abominations, and go about establishing your own cult of zombies/patch of plant people/leper colony. Diseases. That'll be a pretty damn cool addition.