Hexagon Surface Manipulation

Hello Guys,
After texting about this on a different topic I thought it would be interesting to create a new topic about this. I have a Hexagon shape that has some form on it already and I’m looking to manipulate the surface in different ways. Here is the link to a reply were Joseph has created an example of this already: voronoi on surface. I believe it would be cool to have the surface be like these vase designs I did.
Vase Designs.gh (16.4 KB). I just don’t know how to get this pattern on the surface.
I was also thinking a rippled (raindrop) surface would be interesting.
Important for the manipulation is that the outside shape of the surfaces needs to be maintained meaning that the surface would need to be extruded to the inside.

rhino object

reference for ripple idea
Writing-of-logic-program-for-water-ripple-morphology-523-Generate-model-using-Rhino_Q320

Looking forward to your ideas
Till