Over many years, I have also looked at 'rock landscaping' at motels/hotels, restuarants, etc., finding interesting stones across this country and other locations. When I was grinding - polishing interesting stones, more often than not, I freeformed them, rather than forming them into traditional shapes.
I love it, I work doing Traffic Control Flagging by many of these rocked areas I know the feeling. You wouldn't believe the beautiful rocks I've collected. Standing outside directing traffic you see even the rocks in these areas all over. Fossils to gemstones. Its tremendous