So I started custom Ghost Knights. I only have one nearly done for now due to time constraints, but this is what I got so far:
This is how I set him up. I took a bro banner and used a hobby drill to make a hole in the top and bottom of the shaft. I then took a paperclip and cut a small piece of it off.
from there I drilled a hole in the base of my model for a spot to put the banner.
now that I did that I placed the pieces of the paperclip into the holes after putting a teeny little bit of glue into the hole to make sure it stays.
So now whenever I feel like it I can say my ghost knight has the bro banner, or if I wanna save points or just run a halberd instead of the banenr, I can then remove it from the base and all is well.
I put a piece of the paperclip in the top section of the banner so if it ever falls it won't just break off as those pieces seem to do. I've already done this with every banner I have gotten my hands on so far and half my army has metal wire inside their joints and limbs so if they ever fall they won't just fall apart. It makes finishing your model take so much longer depending on how much you do but I say it's totally worth it.