Hillary Clinton's New York City subway gaffe last week bore some unexpected fruit for NBC's Jimmy Fallon's business ventures, says the "The Tonight Show" host.

In a photo taken of the Democratic candidate struggling to pass a New York City subway gate on Thursday, which has since gone viral, Fallon pointed out in a clip posted to his youTube page that on the turnstile bar in front of Clinton was an advertisement for the comedian's sports apparel line, Hands High.

Manufactured and distributed by G-III Apparel Group, and "inspired" by Fallon, Hands High apparel — which hit the shelves in October — features professional team logos located "in a new place— under a fan's arms," the company said in a press release.

"I just though it was really cool," said Fallon, adding that it was as if he had his product idea picked in an episode of "Shark Tank," a reality television show in which entrepreneurs pitch business ideas to investors.

"I feel like Mark Cuban liked my idea," Fallon said, referring to the billionaire businessman who is a longtime "shark" investor on the show.