Blender combs structure mesh

Hey there,
I want to try something new and have in fact no idea how to start. I also don’t know how to describe it correctly in a few words, so that I can find something on google. I hope to get some inspiration fitting tutorials over here. Thank you for anything.
Here is what I want to do:
I have a mesh of a character, with one material on it. I want to break in off on some points, like holes and fill these holes with a structure of combs like somehow in this picture:

I asked around and the only idea I came with, was to model all this. But the structure should have the accurate borders of my character mesh, so that’s difficult somehow.
I hope you understand what I’m thinking of and can bring me some ideas.
If you have any questions or feedback, please let me know.
Thank you,
Laura

Basicly you mean triangulate then wireframe modifier?

wow thank you very much , I had no idea, that there was something cool like the wireframe modifier.
Now I only need to solve how to use the modifier only on specific parts and that I get a nice transition.

That’s easy said.
Select the vertices you need, assign them to a vertex group, then use the selection in the modifier:

See the group label?
Play with the factor to get the group out (1 = do not show)
That way you can take out just the parts you need.