Onion
Cromniomancy is a technique that uses onions. It's quite simple to perform, though it takes several weeks to discover the response. Obtain three fresh round onions. Place them in a spot where they can remain undisturbed for some time. Name the left onion "yes," the middle onion "maybe," and the right onion "no." The first onion to sprout determines the answer to your question. If the onion's sprout points toward you, the accuracy of the response is strengthened.
Divination For Beginners
Reading The Past, Present & Future
Scott Cunningham
ISBN 0-7387-0384-2