My boy sticks his face in the faucet water while it's running, so I think this would be hilarious! I dump big cups of water over his head and he just laughs and laughs... seems weird, but he likes it!
It's a great idea. I've always splashed my kids' faces on purpose to get them used to water. Only 1 of my 4 really has a problem with it. He's 3 and he's just so much more sensitive than the other 3. My 1 yo dd doesn't mind water on her face at all.
I splashed water on DDs face from the get go to condition her to water, now I can dump sm cups over her face. I am working on teaching her to swim in the next couple of months. ;)