Pattern abbreviation: JK
Josephine Knots are delightful little frills you can add to any chain. They remind me of a fat, round picot, and I really like the effect. You can see them on the design below on the chains in the center.

To make a Josephine Knot, wrap the working thread around your hand as if you're making a ring. Then simply work the first half of the double-stitch the number of times indicated in your pattern. Close the ring, and continue your chain.
It's important to remember with the Josephine Knot that it can easily twist as you work it. Simply be sure to keep a snug hold on it, especially when closing it.