Re: Yay! Party time!
As he hasn't yet been charged with anything arising from the Mueller investigation due to the Justice Department guideline that prohibits the federal indictment of a sitting president, in theory, there is nothing for him to pardon. He may be able to pardon himself of the impeachment that passed the house and failed at the Senate.
The impeachment didn't get anywhere, so nothing to pardon. The Mueller investigation also didn't find anything that could result in federal charges, although it did uncover some shady goings on at the FBI and elsewhere. Main risk now seems to be whatever comes out of the IRS audit into Trump's business affairs.
But popcorn sales will continue to thrive seeing as there's still that potential issue of the Biden laptop.. Which may or may not turn out to be a nothingburger like Russiagate.