Today is the Cardboard Tube Fighting Tournament in Philadelphia. Big Brother heard about this and invited a few friends to go along. Then he enlisted Middle Sister's help to make him a cardboard shield for the event.
She and her friend made this as a prank, never suspecting that Big Brother would love it! He thought it was great, but is refusing to bring it (they made him a "real" one as well) because he doesn't want it to be ruined. This one, he says, is a keeper.