Geeks are geeks, it doesn't matter where they are. Therefore, why not to boast about your new -and homemade- Pokemon pencil case?
The things you need:

21x6.5 cm and 21x13cm red cloth (I used canvas)
9x7 cm different colour clothes, depending on which Pokémon you want to appear. As I made it with Pikachu, Squirtle, Charmander and Bulbasaur, mines were yellow, blue, orange and green.
21x13 cm lining
Cloth paint
Cloth marker
Sewing machine, scissors, thread... Sewing supplies
21cm zipper (mine was white)

Step 1: Paint the Pokemon on the Little Pieces

Using the fabric paint and the brushes, draw and paint the designs on the fabric.

Step 2: Iron the Back of the Pictures

This is necessary for the paint to stay in the fabric forever.

Step 3: Sew the Five Pieces Together

Sew the four smaller ones together, and then the red longer one with them.

After this, you can iron and sew a stitch along the edges for a better appearance.

Step 4: Sew the Zipper!

Put one lining fabric, the zipper face up, and one of the external sides face down. Sew with a zipper presser foot. Pay attention on which one of the external sides you choose, because it will determine which side will the zipper open.

After this, place the second piece of lining, the zipper with the teeth face up and the other side of the case face down. Sew along.

Step 5: Iron and More Aesthetical Stitch

Iron the pieces appart from the zipper, and sew a stitch along this one.

Step 6: Sew All Along the Edges

Turn the two external pieces together, and the two lining ones together. Sew all along the edge, leaving a small aperture in the lining, so as you can turn later it inside out. Warning! Remember to let the zipper half open, if else it will be much harder to turn it inside out. I recomend sewing a few times over the zipper ends, so as to make it much more resistant.

(Sorry for the lack of images, I forgot to take photos in this step)

Step 7: Sew the Gap

Finally, turn it inside out through the gap we let before, and close it with blind stitch. Done! Fill it with your pencils, pen, pokéballs and pokecards... What you need!