[Zope] Overriding traversal

Hi, I'm trying to override the traversal method of a product derived from Folder. It seems (from Chameleon) that this is possible by changing the __bobo_traverse__ method, though I'm not quite sure what I'm expected to return. Assuming I have a database like this: Folder1 myObject myProduct <nothing here> How can I make myProduct's __bobo_traverse__ return myObject? thanks, Jacob