First,choose the fabric.
I don't want a plain pencil bag so I choose 4 different printed fabric
Cut the fabric in to 4 pieces
12 x 3 inches
4 x 4 x 4 inches
Stitch 4 different printed fabric together and cut another 1 fabric with the same size.
Face the wrong side of 2 fabric together and stitch it .Don't forget to leave at least 2 inches of turn over the right side.
Stitch 2 side <width> of fabric with zipper.
Stitch triangle fabric .
And then.....This is your pencil case!!!!
decorate with key chain!