Commuting on the New York subway system can be a tiresome task. One artist who goes by Subway Doodle found a creative way to pass the time during his commute from Brooklyn to Manhattan – he takes pictures with his iPhone and uses his iPad to draw illustrations over the photos. Many of his creations are these wacky blue monsters, like the one above. It’s long been known there are monsters and ghosts in the New York subways (see Men in Black, Ghostbusters 2), though many have gone unseen. But maybe they’re coming out of the shadows with Subway Doodle as their official portraitist.