I had lots of fun with this challenge. I admit, I don't always think out of the box when it comes to my dies, but I did for this card. I used the negative space to create windows, stencils, and an extra wide border for different elements of my card. Let's take a look. I used acetate for my card base and to complete the "window" feeling of the card. You can see all the layers here.
Here's what the front of my card looks like, head on. I am in love with these papers and the die-namics give it a playful feeling with the peek-a-boo window inviting the recipient to open it up to see what else there is to see.
I used the one of the original and still one of my FAVE die-namics, Framed Greetings to create a window for my card.