This is so easy that it isn't even a tutorial but it just might be something you've never considered. I needed some artwork to fill a tight space; behind the headboard of a murphy bed. Game boards are colorful, fun, cheap and very flat. You can use double-stick velcro to hang them up, especially if you don't plan on playing with them again. Otherwise, use my favorite mini binder clips. Tap a small brad at the bottom of the board if you think they might slip out of the clips. I've had these in place for over a year and they haven't moved in spite of several openings and closings of the bed.