@mrpriest:
I never mentioned using her womanly parts for manipulation, but since her specialty is "assasination" she should be able to do it anyway…
I was thinking she might be able to grow parts of herself with the same affinity (is that the word?) as the thing it grows from, for example if an arm is erected out of wood, she could do it so it would have the attributes and texture of wood, as in, a wooden arm, or rubber if it grows outta Luffy, you know what I mean?
That's actually a great idea for growth to Robin's powers, I can imagine the kind of resourcefulness she'd use like throwing a stone and then sprouting many stone fists out of it to form a sort of boulder.