HCJtractor,
Sure here are a few more. I had found some thin material that is uncommon in Limestone. The moon and Ying Yang were carved, then dipped in acid, finally grinding the high areas smooth. Gave the moon some "craters". While in China last summer I saw a lot of Bamboo so that made me think to give it a try. I'm Irish background, so the Irish Knot was fun.
Working on a new concept of carving very thin sheets and adding a stone frame later. It saves a bunch of time cutting the inset and allows the use of a jigsaw with a stone blade. While at the quarry last week, I found some super thin slices, they were unbelievably thin, some 1/4" by 14 in by 96 " long. I want to try to made a boarder like mat board frame to shadow box it.