Waiting on a train can be stressful, and nothing relieves stress like popping the air-filled pockets on a sheet of bubble wrap. With that in mind, street artist, Biancoshock set up an installation of sheets of bubble wrap at an Italian train station labeled "Anti-Stress for Free." Each sheet is of a different size and labeled according to how long you're waiting for your train.

Related: Street Artist Pokes Fun at Brands in Series of Subway Ads with Computer Error Messages

[via Rebel Art]