[perezfan]

I actually like it just the way it is. Sometimes "less is more" and having the pennant alone in the frame keeps it simple and beautiful. I actually think that adding cards within the frame would make it look "too busy" (at best) and sloppy (at worst). Perhaps you could display the cards on a shelf situated just below the framed pennant.

You want peoples' eyes to focus on the pennant itself, as it could possibly be the only one Munson ever signed. Just my .02 of course, but I think you did a stellar job matting and framing it.