Hello!
I am having problems figuring out how to make a hexagon pattern on a cone shape, any suggestions? While looking for answers I came across this website and thought it might help someone https://wiki.mcneel.com/_media/labs/panelingtools4grasshopperprimer.pdf
-Stine-
Parametrics 
Stine, check out the super popular plugin lunchbox.
http://www.food4rhino.com/project/lunchbox?ufh
It can populate a hex grid over a surface, and you can use weaverbird to turn the hex grid into a mesh.