Changeable purse

  I am a guy who has spent way too much time watching my wife switch items from one purse to another so they match her outfit. My idea is a purse that is only the inside liner with all the pockets and zippers of a typical purse. There would be many different colors and patterns of outside purse covers that would exactly fit over the inside purse. The outside would have a zipper all the way around so that the inside zips onto the outside shell to keep them together. I know there are already some magnetized shells that work with this idea, but I have read the magnetic shells slip and fall off.