The More Facade They Remove From Our Building The More Messages Appear

If you don't come downtown often, you might not know that our building (50 Monroe) is getting renovated.  The facade that was put up in the 1980s is slowly being removed and with each panel that gets taken off it seems like another message or sign is revealed.

First we saw a huge sign on the Northeast side of the building that said "School of Cosmetology".  Then we saw some graffiti on the sides of the building, sprayed right on the old brick.  And now we have a weird message scrawled on some insulation.  Apparently that foam was "installed by Pinball + Pudden head".

Who are these infamous construction workers? Can we unmask Pinball and Pudden Head?