That reminds me of a poster that used to hang in one of my classrooms in high school (several decades ago, now) that had a bunch of animals' backsides photographed. It had something like "butts are ugly." and was an attempt to get people to take care of theirs.
Here in rural Minnesota, there don't seem to be many smokers. When I lived in Spain, though, it seemed like a huge percentage of people did and cigarette butts were a common site on city streets.
In Anoka Minnesota it is common to see them littered at bus stops and in garden beds in the main part of the city. I have been trying to battle the burden by picking up the trash and do something about it rather than just complaining about it, but it does get very tiring during these last stages of my pregnancy.