Here’s an origami-liek chair project. The site has the history and step-by-step of making chairs from the from the “spam signs” you see all over towns, especially during election time. The street spam lounger uses more than 95% of the material from 21 of the picket-sized signs, and more than 50% of the material from 1 of the “election” signs. There are only two different part blanks–one for the picket signs that form the “skin” of the chair, and one for the election sign which makes the structure. Link.