This is an Cardboard Glasses Case/ Pencil Case
Step 1: Materials
First, you need to cut 10 inch by 8 inch piece of cardboard and use the format in the pictures and trace it on to the cardboard.
Step 2: Cutting It Out
First, just cut out the outline then lightly cut the lines but not all the way through to make it easier to fold.
Step 3: Finishing It
Then last you just tape it together except the part where the flap is.