They do, in Paty'o's, they have a foam machine above the DJ booth and it dumps it on the crowd, and pretty much everywhere else.
We were there in April and they did the foam party on White night. Keep checking the forum for the theme nights for the time that you go.
Hey Scott and Jen! Yes, on Fridays at white night as scott/jen state. We went on April 26th and were all pumped up for our first foam party and the foam aspect stunk. It got maybe 1 foot high in a small area and right in the center where it was being dumped 3 feet? Maybe. I think the wind may of screwed it up though. There was as much foam flying thru the air and landing in peoples drinks or smacking them in the face as there was hitting the ground. So maybe it would work better on a wind free night?
we were there both april 19th and the 26th. I have to agree that the 19th was a lot better, because it was not windy