If your answer is, "No way!", it is obvious that you have not read about the Nakadai Project.
It's an effort by Japan’s Design Association in collaboration with industrial waste processing company, Nakadai, architects and designers to make stock that are no longer wanted into useful material for creation of new artifacts.
Guess what they could make out of bases from these discarded office chairs?
Need a clue? Here you go.
Are you getting any closer to the answer? Still guessing?
Here is the answer.
The bases are made into colourful benches that can be lengthened or shortened to meet a child's need.
You can read the full article at the following link:
Nakadai Project: Block Chair by sugiX
Reading this article has inspired you to upcycle what you have on hand? You can pick up some upcycling ideas from best selling author, Kitty Moore.