PU body for an African penguin or Jackass penguin.
Anatomically very natural form made of sturdy PU foam. The shape has a sternum recess to fold the neck perfectly in all positions. When you use the entire humerus of the wing, you can cut away some foam from the pectoral muscle and place the humerus in that slot. This allows the wing to lie firmly against the body and the wings can be placed in the right place. The shape does not contain any muscle mass of the thigh so that you can position the thighbone (femur) properly.
The foam is so dense that pierced leg, wing and neck threads can be fixed so that your specimen won't be wobbling on its legs later on.