I usually share the Reading Rainbow video on Teacher Tube or Vimeo. (Back in the day, I showed the video on VHS that I taped from the actual show. Thank goodness for technology!)
I ask my students to bring in the name of a veteran, branch of service, their rank, and years of service. If they don't know one, then I allow them to use a celebrity Veteran, like Elvis or Ronald Reagan. They transfer the information onto a black construction paper brick using a white crayon.
Then we build our wall. When I first started doing this, it was just my classes (a small wall). Now my entire grade level does it. It is pretty impressive.