Here's a hero card I made today.  It was simple to make and I wanted to share it in case any of you are looking for hero cards that are easy to mass produce for card signings.

I cut a 4 x 5.25 inch piece of kraft.  Next, I used stickers to spell "hero" and used a white gel pen to outline the letters.  Then I punched a star and glued it to the cardstock.  Finally, I passed the whole thing through an embossing folder before attaching it to a white card base.  

Cards shipped to OWH in 2012: none thus far, but my box is filling up nicely!
Cards shipped to OWH in 2011: 1695