Alright, my plans for the thingy on the shoulder:
First, you need a hemp rope and some sculpty. Red and white paint, too. (don't forget an oven to heat the sculpty). Now, make the shape of the weird beady thingy out of the sculpty and pop it in the oven for however long it says. Next, you want to paint the beady thingy in the prescribed colors (red for the two ends and white in the middle) then drill a hole through it near the top. String the robe through it and you've got the first part made. Woohoo! Don't forget to knot the rope at the two ends.
Now, before we secure that on the jacket we need to make the spiral patch.
I planned to make it out of a piece of fleece for my jacket since that's what the rest of the jacket is made of, but you can pick whatever you want. You need to make the spiral pattern by hand sewing silver rope in the appropriate fashion to the circle of cloth, then hand sew the newly-dubbed patch on to the shoulder.
Alright, got some craft leather?
Contrary to popular belief, if you see it in closeups, this is not two pieces of leather on each side, but rather one to each side folded in half. You'll need fairly wide pieces of craft-leather to complete this. Sew the outside of each half of leather on to the shoulder at either side of the patch. Leave room for the hemp rope.
Next, place the rope ontop of your half-stitched leather and fold over. Hand-sew again to close and VOILA! Fine!
^^ Hope it helps.