Joshua Keefe writes: Pope Francis’ ’historic visit to the city could be a gift from God for street vendors and small businesses.

Enterprising merchants have already started to cash in on His Holiness’s arrival, hawking a wide array of papal swag — from solar-powered pontiff figurines to key chains and buttons of the beloved Catholic leader.

The $25 “Solar Pope” statues were lighting up registers at the West Village home-goods store Kikkerland.

“We’ve been getting a lot of attention. Our sales have definitely increased,” store employee Alex Holland, 25, said of the statues, which wave at passersby. “People seem to really like them.”

Pope Francis merchandise was also selling briskly in tourist-heavy parts of Midtown and near St. Patrick’s Cathedral, where he will celebrate Mass.

Two blocks away at souvenir shop Grand Slam New York, magnets, T-shirts and umbrellas with the pope’s image sold faster than indulgences during the Middle Ages.

“The [$6] magnets have been selling very good,” the store’s manager, John Palha, 52, said just after he sold two pope shirts for $10 apiece.

Pope mania has also been inspiring peddlers to give back.

Christopher Burrus, 53, hawked $3 prayer cards of Pope Francis at a table set up a couple blocks from St. Patrick’s. The retired cook said that a nearby Episcopal church that feeds the homeless will get some of the money he makes.

“I’ve agreed to donate $70 of my proceeds to the church, but I might give more,” he said.

While many merchants saw the visit as a blessing, some were praying that street closures wouldn’t hurt business.