PLYWOOD: Marble Run My children would love if dad could make this one. This is AWESOME- Looks like a good project for the school - CJ
Cardboard Chair by Martine Matejczyk - fancy-deco.com
12 Amazing Things Made With Cardboard Tubes - Oddee.com
Karton Group Box Stool
Chairigami is an innovative designer and manufacturer of cardboard furniture.
Take a seat wherever you like with this portable seat
33 Creative Cardboard Furniture Designs - From Folded Cardboard Furnishings to Comfy Waffle Seating (TOPLIST)