today i read an article about sports balls(aka dreamballs) made from recycled cardboard. you can read the article here: https://www.dezeen.com/2009/12/01/dreamball-by-unplug-design/
unplug design, a seoul-based design studio, created these balls to provide children in developing countries with something hopeful and positive among the poverty and war aftermath. to do this, unplug design uses recycled cardboard innovatively to create a durable ball.
i think that this is a brilliant creation, not only does it encourage upcycling but also turns the upcycled product into something entertaining. i am trying to find a tutorial on how to make these, it looks incredibly interesting.