DS 5 went to the park today and they were decorating pumpkins using felt stickers. After decorating the front he seemed to want to keep working on it so we suggest he do what the other kids were doing and make another face on the back of the pumpkin but he refused. He then turned his pumpkin around and started to put sticker on it so we figured he had decided to put another face on it. When he was done he turned it around for us to see. He had made a row of triangles and used a smiley mouth at the end of it. We weren't sure what it was so he explains, " It's his vertebrae and this at the bottom is his coccyx."