Often I can not find a costume that my cat will tolerate for more than a minute of shame. But I stumbled across a picture of a cat in just a shirt (struggling to escape it)and thought to myself, if a cat will wear a collar, why not a shirt collar. So off to the thrift store I went in search of a very small child's shirt, I found it and a clip on tie.
Take the small child's shirt collar (mine was a size 4) and just below the top button cut the collar from the shirt.
Then take your clip on tie, and cut it off at mid chest level on your cat. They kinda get the idea something is going on when you hold the tie next to them, but Smokey was still very cooperative.
Take your fabric scissors and cut the tie so that the bottom resembles the bottom of a regular tie (basically you are just shortening the tie to fit the cat).
Then fold the raw edges of the tie under and glue them into place. You can use fabric glue here, but I prefer hot glue because it sets up right away.
remove the "clip" off the clip on tie. I discovered that it irritates the cat. Then button the top button on the shirt and hot glue the tie into place.
When the glue is cool, slip the collar over the cat's head and let it go. I found that both of my cats didn't seem to mind the new collar at all, and didn't seem humiliated like they have been in the past with other Halloween costumes.