Here is an interesting example of a chair by Scott Collins, a Chicago based designer, made from a singe piece of bent plywood. The idea for this chair is pretty simple, the tricky part is bending the plywood to this particular shape. I think the simplicity and minimalistic design of the chair makes it a very interesting piece of furniture.
Going in another direction, this next chair, the Slices Chair by Mathias Bengtsson, begins to show how we could create a chair by cutting our design into “slices” and then cutting theses slices using the CNC machine or the laser cutter. These slices then could be layered one on top of another to create the full sized chair.http://www.bengtssondesign.com/