Cardlady is right there, the groups of objects create the reading, and interesting sometimes if something is absent from an area, but seems like it should have been there, can create a part of the reading.
I have to say that Chronata is pretty amazing at this kind of thing. I've learned some of my foundational methods of casting and reading from her! It was a very quick lithomancy reading that she did for me, and was sort of unfinished, because garderner was hustling her out the door. And it changed my life. I became a divination junk junky after that.
So you can have a reading cloth that is based on astrology, playing cards, seasons, etc and then your objects may have assigned meanings or elemental associations. And you go from there.
Oh Chronata....please do pontificate upon the topic!
Let's see if I can find her lithomancy thread....
And fran has her own method as well. She must be around here somewhere...franniee!!! Can you share your methods for pessomantic divination???
I'll be back to talk about how I do junk readings. And maybe someone can talk about how Mama JuJu does hers???? Where is Scion? Or Mimers....can't find anyone this morning....