Before we moved away a friend of mine showed me a tutorial for making dog neckties. I have wanted to try making them, but I didn't have the chance (or a dog to model them) until recently.
I found my opportunity when some friends at church asked me to watch their dogs while they were on vacation. They own a Great Pyrenees and a Great Pyrenees/Lab mix. A few days after they left, I went to Goodwill and purchased some neckties and got to work.
2.) Measure out how long you want the necktie to hang down from the collar and then add one inch. (This is for the 'knot' of the necktie. I didn't add that to my first small tie and it came out looking shorter than I wanted it to. I learned the hard way).
3.) Add an additional 4-5 inches for a smaller dog (thinner collar) and 6-8 inches for a larger dog (thicker collar) and cut. If you want to be sure of how much fabric you will need, just use your dogs collar as a reference point. If you don't have a collar handy, go a little bigger than you think is necessary. Remember, if the hole is too big, you can always sew it closed a little more.
6.) Cut a strip off of the remnant of the tie you set aside and wrap it around just below the spot you sewed. This is the equivalent of the knot on the tie. Fold the ends in so you don't see the cut ends. Sew that together, making sure to connect it to the tie itself to keep it in place, and you are finished!