Hmm??? Still a bit leary on the fins. (Here's the first iteration using a plastic bag for the fins).
Logically, the furriness shouldn't be an issue and only minutely add to their hairball formation...but, it still makes me feel a bit uneasy.
Eh, I don't have any old clothes, nor any ribbon large enough on hand...so just used what I could find that'd be different for the time being. Pppppp!
Meh, once I figure out something for the fins that I feel comfortable with then I can finalize the patterns (anomalocaris, goldfish, ammonite, and a squid).
You've got enough ideas to make a knitted Cambrian 'Under the Sea Kingdom,' the crinoids and hallucigenia would be cool to see, along with a few trilobites. Chronic pain is no fun, and I hope you can find another outlet for your creativity ๐