A pretty glass POCKET PENDULUM. This little tool is as effective as any of the larger ones on the market. I have large, very large and small pendulums, and i use them all. I have them in every handbag, and every room. Over years I have learned to trust these little receivers of voices from the "other side".
You can talk to spirit guides, people who have passed over (become another John Edward)... or just get help to decide whether you should take more vitamin C today.