"Avengers: Infinity War" is one of the biggest cinematic events of all time, breaking all sorts of records and forcing us to dodge spoilers like the plague.So how did the cast celebrate this landmark achievement? Why, by getting really cool matching tattoos of the Avengers logo, of course. Well, some of them at least. Robert Downey Jr. unveiled the unique inking that he, Scarlett Johansson, Chris Evans, Jeremy Renner and Chris Hemsworth all got.Take a look at Tony Stark's artwork below:"Five of the original six Avengers got a tattoo," Downey Jr. explained to Entertainment Weekly. "And the sixth was the tattoo artist, who gave it to five of us, the one who opted out being Mark Ruffalo. "It was Johansson's idea, and she and Evans did it in New York. Then, their New York guy, Josh Lord, who is amazing, flew out to LA, he did me, did Renner, and then we just bullied Hemsworth into doing it, and he got it."And each one of us drew a line on the artist with his own tattoo gun, and it was a total massacre. Each of us contributed to giving the tattoo artist the sixth tattoo that he designed for us." You can watch the video of Chris Evans tattooing Lord here:"By the way, he's got another one on him that Scarlett did, which is beautiful, which is crazy, because the line she drew on him, which was just supposed to be a straight line, looked like a lightning bolt. It was a mess."