Folded Yunomi

It is not uncommon for me to be asked how I make these pieces:

I throw a shape that is a bit more like a bowl,  cut it in three sections, then fold each section over the adjoining section.
 In order to achieve the surface decoration you see, I spray separate layers of underglaze colors over each other,making sure each layer is dry before continuing.
I  then use different grits of sandpaper to sand to different layers.