You may want to watch out with "high pressure water streams." I've used simple water pistols and squirt guns on some occasions, and they work just fine. And you can fill them with wine, too, if you get my drift.
I believe I remember there being one on the kink.com website "Water Bondage" where I think it was Nina who was subjected to that form of tickle torture. you could always shoot him an email and verify that I am thinking of the right place. Good luck.
It has not been filmed... LOL But when I am getting a spa pedicure, the water from the jets really tickle. I love it so I'm always putting my feet right up to the jets, and then take it away when it gets too bad, and then I do it again.
if you really wanna tickle someone with high pressure water might as well go all out and get some ldh (large diameter Hose) usually five inch will do the trick