Wood

I found a sheet of wood that has one side colored in black and other in brown. And it is 3mm thick ! Exactly what I need! I believe that wooden strips are going to work better than plastic, mainly because when I tried to put plastic strip in a slot, the plastic ring broke too.

I worked all afternoon with 2D program and finally finished  to draw already curved strips.

Then I tried to put rings and strips into one piece :

I really like the shape of this sculpture and how the rings and strips work together. Also, the left sides strips look black and right sides - brown. I only need to repaint right sides strips because you can see a bit of black (and I want to change brown color into silver or white).