Bowls with spirals from the side of my thumb, made during the last movement to define the shape of the bowl.
I love the daring involved in making these lines. The clay is compressed tightly between my fingers on the inside and the edge of my thumb on the outside; one wrong move of either hand and it can go pear shape (almost literally).
The curve of the foot is also shaped by my thumb. I do not trim, I hate the mess it makes.