Isn't this the cutest thing? Pop up Cube cards are all over the Internet. I used a tutorial from France Martin. This one is made using the Tasteful Touches bundle. It lays flat for mailing and fits in a regular Stampin' Up! Envelope.
Measurements
Cube Body
Early Espresso 8 x 8¼, Place the 8¼ at top of scoreboard and score at 2, 4, 6, 8
After scoring, with the 8” side at the top, cut the scored sheet so that you get two of 2 x 8¼ and one at 4 x 8¼
Outside layers
Copper Foil: 8 of 1-15/16 x 1-15/16 (the 15/16 is just a tiny line less than the 2″), 2 of 1-15/16 x 3-15/16
Designer Paper cut eight of 1-13/16 x 1-13/16 and two of 1-13/16 x 3-13/16
Inside layers
Designer Paper 8 of 1-15/16 x 1-15/16 and 4 of 1-15/16 x 3-15/16