It's not that hard to do with a big drone style octocopter... the kind you'll find hauling around big cinema rigs.

If you made it with ducted props, you could essentially re-create the 50's era military "UFO" style craft that never made it out of the experimental stages...

http://www.ufo-contact.com/wp-content/uploads/2011/05/USAF-Saucer-Craft.jpeg

But making one these days, with modern motors and flight controllers, it could actually fly.

...enough to actually do this in real life... it would go viral instantly.

Once it's up and running you could pre-program it to fly at any height, at any speed, following any course you told it to completely autonomously

EDIT: like this: https://youtu.be/djuv0Lrd9kQ

...but with 8 arms instead of 4 and then a big UFO shaped shell/body over the whole thing...

it would look like a UFO but there's nothing you can do about the sound.

It's not that hard to do with a big drone style octocopter... the kind you'll find hauling around big cinema rigs.

If you made it with ducted props, you could essentially re-create the 50's era military "UFO" style craft that never made it out of the experimental stages...

http://www.ufo-contact.com/wp-content/uploads/2011/05/USAF-Saucer-Craft.jpeg

But making one these days, with modern motors and flight controllers, it could actually fly.

...enough to actually do this in real life... it would go viral instantly.

Once it's up and running you could pre-program it to fly at any height, at any speed, following any course you told it to completely autonomously