

For some context, I create models for 3D printing purposes - this miniature is scaled for 32mm and I intend to use her for Trench Crusade.
As I stated in the title, how would I attach physical objects to the cloak that flow with the fabric. I am trying to replicate an Analavos, or the robe of the Great Schema which is very detailed. My intent is to make a set of four of these nuns with their robes being uniform - the main differences I am wanting to implement are their weapons and poses.
While I could just paint the designs on afterwards, as I said, I would like their outfits to be pretty uniform. The main object I want to attach to the robe would be the Golgotha Cross, but I might try my hand at attaching the Seraphim or the Greek lettering.
The first picture is the base model (I will solidify the robe a bit later) and the second picture is the reference I am working from - created by me.