I am trying to flesh out the details of an interesting animal (for D&D) that will both disgust my players while at the same time have them think the animal is a "useful" creature. I want the creature to be as believable on an earth-like planet as possible.
- Animal must fart as the mode of movement (I imagine this would make the creature smaller and possibly the size of an insect)
- Animal should be as hideous (small head/many arms/small or no eyes for some suggestions) as possible while still in the realms of evolutionary belief
- Animal must provide some tangible benefit to the people that live in the area as the animal (I was thinking something like how bees pollinate plants to help farmers)
What would such an animal look like and what would it be made of? How would it breed? What would it eat? Are there certain land areas/climates this thing should be limited to?