Hollywood stars Reynolds and McElhenney took control of the club in February 2021 and have brought their comic value to Wales with a number of viral clips - but this one might top the lot.
Deadpool star Reynolds is one of America's most recognisable faces, and has played on that dynamic with It's Always Sunny in Philadelphia actor and creator McElhenney, with hilarious consequences.
This time the joke has ended up in the Wrexham stadium toilets, with Reynolds celebrating his co-owner's 45th birthday the only way he knows how.
Standing in shot of a cistern, Reynolds, wearing his increasingly trademark Wrexham hat, begins paying tribute to McElhenney.
He says: "Today we commemorate a man, not just any man a man…"
And then interrupting the shot comes a fan who's clearly just been using the facilities.
"Up the town," Reynolds says. "Not gonna wash your hands? OK."
He then continues; "Today we celebrate Mr. Co-Chairman, Robert Lucinda McElhenney with this memorial urinal."
Champagne is uncorked and a bow is then cut across a gold plaque with an awkward picture of McElhenney engraved with the message: "This urinal is dedicated to Robert McElhenney on his birthday - April 14th.
"With love from Wrexham AFC. Paid for by Ryan Reynolds."
"Congratulations, Rob," finishes Reynolds, before toilet flushing sound effects perfectly cap off the clip.
The good vibes keep coming for in-form Wrexham, who have the prospect of an FA Trophy final to look forward to at Wembley in March, as well as the conclusion of their promotion push.
And with the champagne likely to keep flowing as the season winds down, McElhenney's latest gift will likely come in handy.