Usually the sketchiness I see on the NYC subways has more to do with undiagnosed mental disorders than it does art. But, part time radio producer and part time techy doodler Eric Molinsky draws stealth portraits of the MTA's less sketchy riders using only his index finger and an app on his iPhone.
The results are a very charming cross section of the train riders straphangers and hopstoppers see everyday. Molinsky captures the mood of the morning commute and the amazing education in humanity (culture, fashion, emotion, oddity, etc.) that is the New York City Subway System. Beyond the great idea to document the daily crowd, Molinsky's sketching skills on the quick are quite impressive.
To see more about his technique, check out the video piece the New York Times ran on Molinsky earlier this week.