Twitter user Dave Higgins, a writer with So Sue Me, posted this photo of 12 Dublin friends who all dressed as different bars from a Cadbury Christmas selection box for a pub crawl.
The lads were taking part in the traditional "12 pubs of Christmas", whereby you travel to 12 different bars to have a drink.
Usually, revellers would wear some Santa hats or festive sweaters for the occasion.
But now the game has well and truly been changed.
I made all 12 costumes myself. It took about two weeks, and each costume took a couple of hours to make.
Last year, they went out dressed as a nativity scene.
We tagged some pictures on Facebook and Twitter, but I didn't have my phone out with me, so I didn't realise there had been this huge reaction until I got home.
Mine is hanging on by a thread. I think one costume might have been left in town. I don't know what costumes we'll do next Christmas. But I don't see us topping this.