Old-school graffiti with intricate tangles of kinetic letters and cartoonish characters is just about everywhere except the place that was once its sole domain: the metal skins of subway cars.

He says he “started with the classic letter graffiti, but then I switched to doing characters with a bubble saying something because I like that people can relate to it more.

Beyond graffiti letters, Fazer Tenorio — the name he uses as a graffiti artist — is creating art with flowers, birds and cartoon characters.

Her sister, Larissa, 14, also attends camp and says, “I like making the graffiti letters because they don’t look the way letters normally do. They can be more crazy.” ...