My elephant box was the first box that I made in this size. It's 3 inches wide, 3 inches deep and 4 inches tall. Just the right size for the little amigurumi style toys I make every so often.
This one is a duckie box, inspired by a bead graphing article I wrote. You can find that here.
Click on the images for the full sized 100 ppi printable pages. It takes 2 sheets of card stock to make this box.