Well, I’m not sure it’s “graffiti” exactly, at least in the sense of being vandalism, but it’s the kind of art style:

Doubt you'd want to see this guy in your dreams...

This graffiti painting is of komainu (at least I think it is).  These are lion-dog statues that stand at the entrance to many Buddhist temples here in Japan.  This drawing is at a local shop here in town, near one of my favorite restaurants.  Just one of the many interesting artistic things around town!