> Does anyone have a plexiglas sheet that can be screwed in place over
> their bulletin board? I remember such a thing years ago in college. Now
> I teach at a school where we have narrow halls and I love to post
> charcoal, pastel and other fragile drawings on a hallway bulletin
> board. The board is huge--maybe 10 feet long? Where do you buy the
> plexiglass of that size? I don't want to have too many seams. Or maybe
> you have a different solution.