paper bowls for art project

I am making some art for the birdnest project.
I tried to make birdnest with recycled paper and added from it to complete my work.

These are bowls that made out of recycled paper, washi etc. from made out of small bowls. 

This paper bowls made out from bigger glass bowl, after I strugged with 6 of small bowls.

From here I will do more collage on to the bowls. I think I will connect other bowls together as one work. I may or may not to use tofu plastic case for more addition.