I have done the ring test too. It swings in circles for a girl and back and forth for a boy. I can't remember what happens in between, whether it stops or just changes... Whenever I do a "reading" for people I ask to use their ring and a hair from their head, but I find that actually it works with just about any dangling object, e.g. I have even used a key on a chain once. It is mostly accurate, although one of the last readings I did was for a friend who had one DD. She told me before I started that she didn't think that she would have any more children, and sure enough her reading showed one girl and nothing else. I was most surprised to hear from her a few months later telling me that she was pregnant! I'm not sure if I had pulled the ring away too soon, believing her that she wouldn't have any more kids or what, but now she has a lovely DS too. So it's not always 100% reliable.