This is my drone concept which helped me test propeller animations. The drone is inspired by the Syndrome Velocipods from the Incredibles movie, Vulture Droids from Star Wars franchise, and the contra-rotating propellers of Tupolev Tu-95 airplanes. Perhaps a drone like this could fly in real life based on early experiments for VTOL propeller craft. Though, designing a way to keep the rotating ring section attached to the main saucer frame would likely prove too challenging or impossible. Maybe it could stay attached with another rotating ring attached to the main saucer or using some type of magnets. I created the model and assembled the textures using Blender 2.9.1.2. The textures consist of solid colors and a 2048x2048 normal map. The model and animations were imported into Unreal Engine 4.2.6 to as shown by the first couple of screenshots since I may use this design for a video game I've been working on. The Unreal Engine model is not included with the files I uploaded here.