The lightweight, portable, space-saving stool takes paper folding to the next level. From the outside, while unopened, it looks like a coffee-table book. But, once it's open, it becomes a colorful stool that you can easily fold back up and tuck away on a bookshelf. Emily Takemori was inspired to make the stool by her NYC upbringing, which meant small-apartment living.
To buy: Shoprenro, $60