Cut one piece of fabric any size and fold in side edges.
Turn over and embellish as desired.
Fold with wrong sides together leaving a small flap
Stitch from bottom of fold to very top of flap.
Add buttonhole and button, this is really the back.
Front has decorations.
Stuff with notions or art supplies and enjoy
One of my "go to" bags when I need a quick one.
Hope you can show me if you make some.