I know what you are thinking ! I have lost it !! But these are adorable.
First you need to start with a stiff place mat, something that is sturdy enough to hold your belongings.
Depending on how you fold your place mat , you can make it big or small.
Here we go...
Lay your place mat on a flat surface and decide how big you want your pouch to be. Fold the right sides together and pin along edge.
Sew along the sides.
Turn the bag inside out, Be sure to push out your corners.
On the flap.. fold in and again sew in from the hem or so it is lined up with the pouch .
You can use any decoration you want for the front, snap, ribbons, button any thing you want. Make it your own.