I've always thought the best way is to frame my tickets from the game and keep them for all to see. I've only been to a few different stadiums with my son and wife. It is a memory we won't forget ever from each one.
The first one we ever went to was Yankee Stadium in it's final year. I didn't even care who they were playing when my wife had a chance to get the tickets. We found afterwards that they would be playing my Mariners. The pinstripes were done by me with a navy blue pen and a ruler to give it that Yankee feel.