Computer generated images
I listened to some stuff on this recently on Coast to Coast.
There are many more photos here.
Note the one with writing on it (it doesn't seem to be in English, or Klingon for that matter):
I'm calling a computer-generated image unless I see more information, like movies or other details. I note that my own digital camera can switch to movie mode with the flick of a switch.
If so, whoever generated the model gave it a lot of thought. It is barely plausible as some vehicle that flies by means of electrostatically-charged airflow.