That's funny you mentioned St Patrick's day. In the sixties My dad was the general manager of Jack Stewart Ford in Chicago. Every year he would order twenty special paint mustang convertibles. He ordered them in a Kelly green color that was a 50's ford truck color with white tops and interiors. He would place a couple of them in the Southside Irish parade on Western Ave and he said he would sell all twenty cars within a week of the parade. People would see them in the parade and come to the dealership the next couple days wanting to buy one. They all probably thought they were getting one of the two parade cars, not knowing there were twenty of them.
View attachment 70987He also had two yellow diamond shape street signs made that said "SLOW Mustangs crossing". He placed them right before the dealership on the street going in both directions. They were there for a few years until the county was going down the street cleaning signs and noticed it wasn't one of theirs and made him take them down. I found a picture of the showroom of the dealership but I couldn't find the picture of the street signs. I had one but can't find it, they looked like legitimate SLOW pedestrian crossing signs.