Here's an explosion box I made with a Valentine's theme. Check out the rest of the pictures to see how it works. It's made from 4 pieces of 12x12 cardstock and several smaller pieces of designer/patterned paper. I've made several of these for gifts and put gift cards inside the inner pockets. I also made some for the directors of a play my daughter was in. I used pictures from the play to decorate it instead of the patterned papers on the inside. And I put tags with notes from the kids in the play inside the pockets.