Here is how Ragnar's sword arm started. The GW model and the art in the new Codex both show Ragnar with a chain sword. None of the chain swords in the Wolf Pack kit had a pose I liked, so I dug the power sword arm out of my bits box and did some cutting and glueing.
Ragnar is supposed to have fancy shoulder guards. I wasn't too keen on sculpting a laughable imitation with green stuff, and started looking around for suitable bits. While looking over the sprues from the Wolf Guard kit, I noticed this bit:
Perfect! I even had a spare that I had ordered from a bits seller on ebay a while back (thinking ahead/buying stuff I probably wouldn't need). The rest of the cloak has the fur from a wolf's leg that looked like a possible addition to my conversion. It, and the wolf head bit are shown below, trimmed and ready to be attached.
Edit: pictures of the model mostly finished.
Excuse the tissue box with the flowers.