Here it is. For this you will need 1 metre (or yard) of feature fabric, 1 yard (or metre) of lining fabric, an 8" zip to match the lining fabric (Leukemia Research in Lutterworth have lots at 50p) and a piece of wadding 42"x18". Needlepunched polyester wadding is stiffer and would be good, but any wadding is fine. You will also need thread to match your feature fabric (for the quilting) and the lining.
Here is a view of the inside of the bag, with zipped pocket and three other flap pockets.
If anyone wants to come and just bring a current project, that will be fine, of course.