The Kindle's packaging reminds me of a spartan jewellery box and is just the thing for presenting flat items like stationery, slim paperbacks, skinny scarves or necklaces/chain bracelets.
I love using index cards for craft projects. They're multifunctional and impart a sense of whimsy 'old-school' to the finished work. Here are some of the ways I've altered index cards.
The nested lid and receptacle of an origami Masu box is functionally compact, but sometimes, the snug fit makes it clumsy to pry apart. Here are my modifications to the traditional design.