It seems to be raining all the time in Chicago these days!
Try to find a spot where you are covered, and maybe the rain is pooling up and you can get raindrops splashing into the puddle. Use a fast shutter speed to freeze the ker-plop
You can also create your own ker-plop - maybe have a glass of water and drop a strawberry or cherry into it and try to time the landing.
If you have a pond or a lake near you, try to drop a stone in and take picture of the ripples.
If you are somewhere besides rainy Chicago and actually have sun and a pond, see about getting reflections in the pond. drop a stone in to distort the reflection a bit.