Sometimes the pieces that you find that dont look like much have the most appeal. Like these two pieces of old coral, the patterns are beautiful but unless you look closely you wouldnt notice them amongst the shells on the beach. Im going to see what sort of marks they will leave on the clay as I often keep pieces like this just for mark making. I will have to take a photo of all markmaking items that I have, I have filled a lunchbox of treasures that make the most beautiful marks, some are natural shells and coral or old pieces of plastic or metal anything is used and after awhile you can just look at something and know that it will work.