Gerry sent this in. No, I don't know what the hell this is all about. All I know is that wherever this is, I'm glad it's nowhere near me...
Now, they look like they might be side-by-side shotguns (ZOMG! It's the Biden Dance Squad!) so it's entirely possible that these are blank loads specifically for whatever this festival is. However, I look at this in the same sense as the amateur "let's get an artsy shot down the barrel of a gun" - while the person taking the picture might be the very epitome of professionalism, there's thousands of Cleti out there who are going to be "inspired" to get a similar shot.
How many jihadis are going to be "the only one professional enough" to blow a hole in one leg trying to imitate this?
That is all.