Martha Stewart makes a magnetic bulletin board with a snap together wood frame, galvanized sheet metal, a masonite board, adhesive and wire. She also creates a Good Thing by using the leftover sheet metal as a drawer liner.
National Poetry Month idea? Have a container full of words (nouns, verbs, adjectives, etc.) and also residents to mix and match them. They could be hung by pins or Velcro. Perhaps once a week residents could vote for their favorite poem?