I had often considered making a radio controlled version to see how the real ones would behave in the presence of it.
So a visit to a hunting shop soon had me in the possession
of a very realistic male mallard duck decoy.
Now to find out how easy it is to cut into the decoy and remove a top section for access without damaging the outside finish too much. Fortunately the plastic was not
particularly thick (about 1mm), and a sharp bladed knife was used to do so. I followed a feature line around the duck’s back and up to its neck. The head was then carefully detached as well, since I wanted to make the head turn to help with the realism.