This is a card that I made for my card swap group in the spring. I started with heavy black glitter paper and cut into 5" squares.
The back is from the Silhouette Online Store: Petal Fold Envelope or Card by Lori Whitlock Design ID #4216 in black card stock. I used E6000 to glue buttons and tassels to the front of the card. There is a square in white card stock in the center of the petal to make it easier to write. You could also leave it black and use an opaque gel pen. (school colours would work well)
The petal flaps fold like closing a cardboard box.