You can try to shame a smoker but it usually doesn't work. The fellow in the tabac (and for the record, I was in there buying a pen) looked at me kind of oddly when I asked if I could take a picture of these plastic sleeves for cigarettes. But he said okay anyway.
By the way, these cases look like the work of Benjamin Vautier (whose products for the stationery company Quo Vadis are among my favorites) but they're not. If your life is incomplete without one, you can purchase them from Latitude Sud.
Translation: (left) I know, I know. (right) I do what I want.