I made this cute card using the gorgeous Haiku paper from Stampin' Up - the card opens up in two directions and the front flap tucks in behind the scallop. Then I sent it to mum and it's on her mantle piece in her new house.
Here's another one using Paris in the Spring:
and here's the inside:
It's easy to do, you just make two cards and stick them together, folding in the opposite ways.