A penis

As she scrolled down and found the genitals section, Samus tried to give herself a penis, but instead, a panel opens up in the chamber to reveal a disconnected penis that has a pronged back end, she then realized she's meant to attach it to herself, she picked up the 10 inch dildo and inserted it's base into her groin area and after she heard a click, Samus looked down to see the result and it looks as if she always had one and as a bonus, she can make her penis as hard and flaccid as she desired.