That potentially works -- but is tricky.
I use the featured flag already, but they are typically from a single category. So in theory, I could expose that category and hide the featured articles -- which effectively displays only the archived ones.
However -- when you create a menu item for a single category listing, it forces you to use the settings found in the category. That means I can't create one page that uses featured items from that category, and a second that suppresses those.
Any workaround?