I want to make an animation of an arrow (like from a bow and arrow) piercing a raindrop. Pretty quickly, it occurred to me that if I want to make a rain scene straight up, I would have to use a gigantic domain and extraordinary resolution. In addition to being probably not the best idea, I'm working on an 8-year-old computer which can't do that kind of hard core simulating.
What I'm asking is what is the best way to make a rain scene that can be interacted with? I'm fine with any sort of fakery as long as it looks decently realistic.