Voronoi arm prostetics

Hi guys,
I would like to 3D print arm prosthetic for my fried. I have 3D scan of her arm but I would like to make Voronoi pattern so one could see through the 3D print. Since my knowledge of Grasshopper is limited I would like to know if someone have suggestions.
I tried with Voronoi command but it gives me surface creation. I need it along the surface and I would like to control the size and thickness of the future pattern.

Search the forum. The last month there were like 10 threads about it.

I’ll try to do that.