I want to make a cake with a bridal gown as the top tier. I see these cakes that have a black headless body that the dress is on, kind of like a headless mannequin. Do people make that themselves or take a doll pick and take the head off and cover it in black fondant?

There's a tutorial here on cc on how to do those cakes
http://cakecentral.com/tutorial/how-to-make-a-3d-wedding-dress-cake