Here is the Sock Dragon. La Tanguerita and Pip both guessed right in the previous post.
You instantiate a Sock Dragon by knitting out of sock wool. It doesn't eat any extra socks for being instantiated.
It has two rear feet like this with four front toes and a backward-pointing toe. They are made as bobbles. The leg is knitted like a toe-up sock with bobbles.
I considered knitting the spines along his back but I haven't done that kind of edging before, and it also seems a bit floppier and more difficult than the crochet alternative.
I have no memory right now of how I did these, it seemed obvious at the time, but essentially there's a row of dc along his back in the purl gully between two mirrored 6x6 cables.
That's followed by two layers. I've done a few ch and some stitches of progressive height, then covered them over with long-legged dc, but I've completely forgotten what the logic was. Not at my most stellar today.