Pattern.....I took a sheet of printer paper (8 1/2 x 11)
Cut an inch off the 11 inch side to where you have 8 1/2 x 10.
Cut out two pieces of fabric and sew together leaving an opening to turn, make a tab with button hole and insert into opening and fold up approx. 4 inches and pin.
The size should be 8 1/2 x 6 inches. Sew all around the outer edge and across the folded edges. Fold in half and at the point sew the center pocket, creating two pockets. Sew a button on and you have it.
I also took a sheet of printer paper and folded it into a tea bag holder but haven't accomplished this on fabric yet!
Tcharlie