One of the test photos for a project called Drawn to Develop. Read about it and see the final photo on The Grid.
I attached a small model airplane to a magic arm and attached the camera to the other side. That way I could lock focus to control the extremely shallow depth of field of the Voiglander Nokton f0.95 lens and freely move the whole thing as one unit through light sources.

And a video version of the test.