I made good use of the “Listen To Metal” stickers I helped Seth with.
This was placed next to a map of the Pittsburgh subway system. When I checked last it was taken down. I have no idea what the pink smudge on it is:
On a Pittsburgh Steelers promotional poster:
On a pillar on a pedestrian walkway that was under Macy’s, on Cherry Way:
Outside a building at PNC Plaza where everyone smokes. The placard on the right is a “no smoking” sign: