How to make a helicopter (for kids) out of a coffee cup

 This was an idea that came to me when I had a box cutter in one hand, and a coffee cup on the other, and I literally made it in 2 minutes. It's a quick and easy way that is good for entertaining kids (and adults too, sometimes)

Of course, it wasn't very symmetrical, and it didn't fly in a steady way, so I made another (this took about 10 minutes total, if you exclude the time I took to take the photos), and I took videos of it.

Step 1 Marking the circle

First I made the outline (of the top of the cup) on a piece of paper, and then I folded the paper in half, and then folded in half again to make into a quarter.

I then divided the quarter circle approximately into thirds. This I then used to make 12 markings on the cup.

The same was repeated for the bottom of the cup. (Pictures not included)

Comments

[matass]

lol

[anicolae]

 Nice Job!

[sfcsarah]

Thanks!

[Kiteman]

Have you tried giving the leading edge of each wing a slight upwards twist?

[sfcsarah]

 I have just tried, but it causes the helicopter to move backwards (video to be uploaded by the morning). A friend of mine suggested making the blades slightly tapered, and I shall upload that soon.

Thanks for the suggestion, though, it gave me something to try out.
:)

[sfcsarah]

no, but I have been trying different cuts and bending the wings to see how it affects its movement. Are we allowed to edit the instructable while it is in the voting phase?