Another style of living hinge, cut by hand. Something similar could be done to create a full adjustable light fitting. The cuts would need to be supported with something to allow control over a light source.
Experimenting a bit more with spiral design and wood bending, this small bowl came to life. It turned out, that a little fixation using small brackets is needed. My build was done on a desktop cnc-machine by Stepcraft from 6 mm birch plywood using a spira