Updated, 9:02 a.m.

Good morning on this fair Friday.

As you head to work this morning, take a moment to examine your MetroCard.

Look closely.

Does it look like a piece of art or one in the making?

Artists are reimagining the MetroCard as an art medium for an exhibition this weekend in the meatpacking district, transforming thousands of the pocket-size passes into paintings, sculptures and other installations.

“The only real constraint was to make a piece of art on or utilizing a MetroCard,” said Jean-Pierre Roy, one of the creators of the exhibition, called “Single Fare,” which is now in its fourth run.

With no other ground rules, some artists are using the MetroCard as a blank canvas, covering it completely with tiny paintings of cows, cockroaches, earlobes, famous faces or fearless New Yorkers. Others, staying loyal to the card’s original look and feel, are including existing parts of the card in the illustrations — in one scene of the Brooklyn Bridge, for example, the card’s black stripe is used as the bridge’s base.