Step 2: Fold outward the pocket of the envelope such as shown in picture below.
Step 3: Cut the flap of the envelope in half (refer to the scored line) then fold according to the picture below. About 1/2″ wide for the flaps on all sides of the main envelope flap.
Step 4: Glue together the flaps by taking another envelope that is created the same way in Step 3, and glue the sides of the flaps together to form pockets. Repeat this step with the rest of the envelopes.
Step 5: This step is optional. Decorate the inside and outside of the holder with patterned papers.
The result should be looking like this…