There's a website with a scatological PG-13 title that has accepted a couple of submissions of mine. It seems to poke at builders in the city who build bad buildings. Whether it is an architectural detail or just a bad design, the unknown author published pictures and a short blast against whatever has been discovered recently.
Here's one on a sidewalk near where I walk many days.
Here's another one on a different sidewalk, also near one of my walks.