Greeting cards are so two dimensional. Greetabl takes things to next level with Greeting Boxes. These oh-so-clever little cards come with simple instructions to fold them into a cube and send to a friend. The cubes can even hold small gifts and trinkets. Greetabl has crafted over 80 different designs for every occasion, so browse their site for the Greeting Box you need. An added plus: everything is made in the U.S.