Whilst visiting family near Bristol recently, I asked the owner of a gift shop if she would sell me a couple of her paper bags which had caught my eye and she generously let me have them for nothing.  I suppose it's difficult to put a price on a couple of paper bags but it was a nice gesture.
This is what I made out of one of them -  First the paper bag -
 
   which became a book cover.


This one is A5 size, the crumpled paper  was painted with watered down acrylics and a stamp pad run over it, then bonded to vilene and a painted grungeboard key added, the flaps were made by bonding fabric to the vilene and then all stitched together.  I love books!