I have discovered, much to my delight, that if one stitches round and round and round then things that are supposed to be bowl-shaped really do become bowls, all of their own accord.
I sort of knew this, but forgot. I am chuffed.
This is an experiment with paper, water soluble and wool fibres - felty on the inside and distressed papery on the outside. When I've added a few beads to the edge, I'll coat the outside with something stiffening.