Voronoi in a volume or surface

Hey, 

I managed to do a Voronoi Sphere. 

But now I'm trying to make a much more complex geometry and adapt voronoi into it. The pictures of the model is so you get an idea of more or less the kind of surface that I'm looking for. But instead of doing it as it appears (by ribs) I want to apply my voronoi geometry in it. I've tried to make voronoi curves surfaces but it's not working. 

How can I project my voronoi geometry in a different geometry than the closed ones (sphere, cylindre.. etc)

Can anyone help me out or

guide me a little bit? 

Thank you so so much!!!