Originally Posted by
PDR1
... but that would need a metal prop to achieve (the nylon props of a multicopter wouldn't even scratch the paint) so that rules out a "drone".
You might be right about alternative explanations but as for the apparent damage you don't need metal anywhere - the damage in my post was caused a small feathery thing.
And they do strange things - like smash up one part but leave other areas directly behind untouched.