Project Of Making Helicopter Having Camera Paper Helicopter?

Paper Helicopter? - project of making helicopter having camera

For a school project, I had to drop an egg from the ceiling and to reduce anything that in the autumn would be the case. A girl has this thing of helicopters and rotating part of the helicopter was from something that looked like a series of airplanes out of paper
when thrown on the roof, swirling in a circular motion
Who knows how or what to say?

was made of paper or cardboard, which was big enough for a little larger than a pizza