I'm always playing with new techniques and one of my recent ones is a loom knit translation of a needle knit cast on called, Italian Tubular Cast On. This cast on is excellent for single ribbing (k1/p1) on hats, mittens, socks or sweaters. It produces a stretchy edge that has a "rolled" appearance with an indiscernible beginning. Below are photos of the finished cast on. Also, a complete tutorial may be found here: Italian Tubular Cast On for the Round Loom.