Pattern? :roflhard: 
Ok, here is what I did… I got the same thick yarn that I had used on the mittens that I made last year… grabbed some needles that I thought were the correct size… I used 6mm.
Then, I cast on enough stitches… that it appeared to be about 5 inches wide… (of course, this will pull in because I just did a ribbing stitch)
The stitch pattern? K1, P1 and repeat to end and knit the stitches as you see them on the other side… (just regular ole ribbing)…
I knitted until it would go around a neck and cross over… w/out pulling too tight around my neck… after all… you don’t want it to be too ‘tight’ feeling or they won’t wear it, right?
When finished it’s about 4" wide… in the rib pattern. I’m not sure how long I knitted it-- but, it was over 24" long-- I remember checking that length and then I knitted some more until it would cross over nicely.
Sew on buttons and slip them through the stitches… if your buttons aren’t too wide- this will work. I happened to find some on a shank that were the perfect color of the turquoise green in the yarn-- (even if the flash faded that part)…
*I also wrapped around and around the stitching under the button (the shank part) to make the button more secure and to stand up better for buttoning into something thick.
*This will be done on coat buttons if you look… they need to be raised up a little higher than the surface of the coat- for ease in buttoning and it will keep the buttons from falling off too.