im sure you can alter this on the computer to whatever you really want it to say.
Actually what my brother did as a gift for me one time was in a bag he got me a shirt of gary roberts and inside a letter he typed up from gary roberts saying how he is inviting me to the home opener and he expects to see me there. but of course the tickets where in there as well.
If you have a colored printer, find from the Internet a photo
from one of the play-off games or a team photo, print that.
Then write on a post-it something like, you'll be there ... ? sign your name, and place in an envelope. You could wrap the envelope in a
photo from one of your programs...go find penguin stickers.