@Ketchup I hadn't even checked lol they're drone propellers, two pairs of counter rotating props.
@Keno (Thanks!) informed me the leading pair should be slightly larger unfortunately I only have a 2 blade counter rotating pair that are larger than the 3 blade in the photo. Could that theoretically cause an imbalance? My main concern at present is weight but assume improvements could be made throughout the current design.
@Hondo76251 (Many thanks) gave me a great start on smaller components. The control module pictured is from a propel x01 micro drone. My end goal is to make and repair these from off the shelf parts this just happens to be my craziest idea thus far. No interest in mass production or the like this is just how I get my jollies. Please critique
Edit: I must correct myself it was a difference in prop pitch not physical size