Our church is having a silent auction soon so I made this purse, wallet and optional flower for my contribution. The purse is the "Buttercup Bag" sewing pattern that you can get (free!) at the Made by Rae site. If you haven't found Rae's site yet, it's amazing and you should go take a look around! The bag has a magnetic closure and a pocket inside and little pleats around the outside. I'd recommend either using a heavier weight fabric or some fusible fleece between the layers to give it a little weight.
Then snip the corners and turn it right side out and iron it flat.
Stich along the open edge to close it up. Then fold over the bottom to make a pocket and stitch down the sides.
To finish it off I stitched a decorative button to the flap and put a snap underneath which you can see in the second photo from the top of the post.