I did not hear about the Ballpark, parking garage, apartment complex #1 or #2, or the string of condo's but I am getting some unique stuff rigged up so I will be ready for some of it when it happens.
I do not think I got the ballpark, their season is starting late, like May 5. It is about 25 minutes away so I have not driven by to see if it is dirty or clean.
What David has rigged up is like what I want to do. I saw what the guy in Louisiana did and wanted to do something similar but more portable, not depending on a tank.