My collar was my first dogs' collar that passed away about 5 years ago. I wore it even before I learned about the furry fandom.
I actually just ordered a leather collar with a nordic/celtic design on it with my fursonas' name (which is also a play on words of my old dogs' name) since his collar is starting to fall apart.
But yep, I wear it most everywhere, not at work only because I don't want it to get wet (my supervisor is totally fine with it, but chlorinated pool water is not the best thing to have nylon or leather get wet in
)
If people say anything (which most who do just say its cute or w/e) I just say its memento of my pet.
I might make a smaller Nori tail when I go to meetups and cons and I'm not in suit, I'm not sure yet.