The dark-cloaked, hooded Naruto's had set up the apperatus an hour ago. At first, everyone had assumed it was another prank, but the grim and almost gleeful looks on the clone's faces had worn a bit of that thought away.
Now, the citizens, anbu and ordinary shinobi were mostly milling around, waiting. Slowly, the sea of clone's parted, revealing Naruto walking slowly, with gleeful solemnity, towards the metal globe on top of a large tube. In his hands, he carried two narrow, milky-white glass tubes.
As he approached, the strange device began to slowly hum. The tubes began to glow. Humming. Glowing. People were beginning to back away.
Naruto raised his glowing rods high and lightning began to flash towards the ground. With a swift slash, a solid ring of lightning began flowing. The crowd began a full-fledged retreat. An orderly one. They were shinobi citizens.
Naruto turned around, raised his batons high and began conducting. The clones began chanting.
"Ph'nglui mglw'nafh!"
Swish.
"Ph'nglui mglw'nafh Cthulhu R'lyeh!!"
Swish.
"Ph'nglui mglw'nafh Cthulhu R'lyeh wgah'nagl fhtagn!!!"
There was a sudden pause and silence, save for the crackle of lighting. Even the world seemed to hold its breath.
Then, Naruto began conducting. The clones began singing.
*"...Old ones we have heard on high..."
1) Tesla Generator: Six years of industrious clones.
2) Neon lights: Seven years of industrious clones.
3) A thorough knowledge of HP Lovecraft and all derived works: The internet. 3,500 years.
4) Pin-point timing: A year of practice.
5) Pulling The Greatest Prank Ever? Priceless.
* Yes, it's an actual song. Google.