Cardboardesign is an amazing company that makes furniture and accessories out of recycled/recyclable cardboard! And, believe it or not, it looks awesome! This is a "green" company located in New York. Here are a few of my favorite/notable pieces:
Liquid Number 2
$37.50
The Liquid series is a continuous honeycomb cell shape that is flexible and sturdy. This can be configured a 7 different ways. As a vase, bowl, place mat, centerpiece, etc, depending on how you arrange it, flip inside out.
Liquid Number 3
can be used in in 5 different shapes
$20
Or you can combine two pieces together:
Shown on the left is Liquid Number 1 + Liquid Number 2
$37.50 + $25
They have a lot more shapes and options available on their website - this just gives you an example of what they can do. It's really fun!
They even make shelves and chairs!