Bag is 2-1/2" wide by 1-1/2" by 2-1/2" tall
Start with cardstock 7-3/4" x 7"
Score on the 7-3/4" side at 1-1/4", 3-3/4", 5-1/4"
Score on the 7" side at 3/4", 1-1/2", 2-1/4", 4-3/4", 5-1/2", 6-1/4".
Cut off squares (see diagram)
Mountain/valley fold the sides, and round corners on top flap.