In this instructable, I show how to make a cardboard chair. This is taken from my book, Amazing Rubber Band Cars (the chair is actually a seat in a life size rubber band powered cardboard car). If you have cardboard, glue and patience, you can make a sturdy (and good looking if you have any artistic ability) chair which will last for years.
Step 1: Template
I have provided a template, but you can make your own if you want to get creative. Remember that you have to cut 76 of these pieces (more if you have a wide posterior).
Step 2: Cut the Pieces
The pieces should look like the template. It is best to rotate the cuts--meaning the "grain" of the cardboard should be alternated with every other piece (corrugation "up" on piece number one, "right" on piece number two, "up" on number three, "right" on four, etc.). If you don't have lots of giant pieces of cardboard, you can use smaller scraps; just be sure to overlap the cuts on adjacent pieces (as indicated in the "a" "b" "c" photo above.
Step 3: Glue
Glue the pieces together--you'll need a lot of glue.
Step 4: Finished Chair
I've had two of these around for over four years--keep them dry (like any fine furniture) and they will serve you well.