This one is simple, but I suck at world builder. Make like very small (0.01 all axis) heavy ass grid of rain that falls on tori and uke. I want them arranged in a cube honeycomb. Just place them to make a cube about 200 CM all axis. Make sure it doesn't go through the floor; that pisses me off (OCD sorta). Oh, and no instagib.
EDIT:
Got bored and gave it a try. It's uneven, and I can't get them perfect. Anyone wanna fix it for me?