I made these as some extra 'rooftop scenery' for my Pulp City games. I cannibalised some Tamiya 1/48 Road Sign sets to provide the basis for the billboards, and mounted a couple onto the sides of Ziterdes Apartment Buildings.
The Pulp City Pirates are the American Football team that Dead Eye was linked with before his fall from grace. I try and think these things out, you know! Even added a little ® symbol for extra 'authenticity'.
I made up a sheet of 8 different designs, so keep an eye out on future battle reports for alternatives.