The hardest or most technically challenging path, of course, would be to actually make three splashes and somehow take their picture.
One level down would be taking three exposures and merging them in post.
But Corrie had what seems to be a better and simpler approach – doing it all in camera.
Usually, when using a few strobes in a single splash shot, the strobes are fires simultaneously to increase power output. (Remember? Low powered pop equals a short burst of light equals less motion blur. Since the strobes are set to low power, you need more of them to get more light).
Corrie took a similar yet completely different path, using three gelled strobes that fired one after another, he was able to capture three stages of the splash in a single frame.
Here is how Corrie describes it (notice how high tech he gets when it comes to hitting cable release)
One splash timed with three flash guns covered with coloured gels.
The blue flash and the red flash are done manually and the yellow one from above is triggered by the Time Machine. The cable release was triggered by my foot ;-)
Here are some more samples using the same technique:
And the same delayed-gelled-strobe trick applied to cream in a water tank
And one with no gel in case you were wondering how it looks like