Yes, as the title of this thread suggests: I would like to know what was used to make these tags.
I've been seeing similar stuff taking a hold of my hometown and it seems like a squeezable bottle or something like that has been used.
They're not as thick as the Ensue in the flick (which I think might be industrial chalk) and not as messy as the Leisure. They look more like the arrow below the Belys (or whatever it says)...