That was my first attempt to do drone light-painting. 

I’ve seen pictures like this before, but I didn’t know what kind of light is suitable for it. I decided to attach a tube with a flashlight to my drone, but the first tube was way too big and my drone started swinging and threatened to crash.

So I shortened the tube and tried again and it finally worked.

When I saw the results, the images reminded me of a signal. That’s why I´ve done an animation with the existing material later. 

You can see the animated version here.