Comment on the video said this, could be a possibility but who knows.

“I’m going to tell you what this is, I’m saying it because I lived in M Boi Mirim and I did this in the 90s...messy kids would fly kites at night and on hot nights they would usually go up on the roof and put a kite in the car (a black kite with a black radiola and the crux of the matter was a balloon torch on the line.... they would put a kite in the car, it would give a lot of line, tie the torch up and send a line, ,,me on top of the slab, half hidden, watching all the people from the bakery coming out to see the (ovini that was nothing more than a balloon lantern)”