One of the two cast-ons used in part 1 of the Neck & Neck! MKAL is the Chinese Waitress Cast-on. This is a lovely technique that produces a reversible edge that looks almost like a 2 stitch i-cord.
In the video below I show how to do this cast on and it has been added to my tutorial webpage.
This is how the finished cast-on looks from the front:
And the back: