Marco RubioMarco RubioRepublicans giving Univision the cold shoulder: report Week ahead: Senate panel to vote on Trump's Labor pick Senators introduce new Iran sanctions MORE's campaign store is offering a "Trump watch" in its online campaign store.
The website shows a busted Rolex for $10, noting that those who purchase the item are just donating to the campaign.
The two were sparring over Trump's business record.
The real estate tycoon hit Rubio, mentioning that the Florida senator took a loss on a house he bought.
"He's the guy that inherited $200 million," Rubio fired back. "If he hadn't inherited $200 million you know where Donald Trump might be right now? Selling watches in Manhattan."
An adviser to Rubio insisted that the product was not pre-planned before the debate.