My son recently celebrated a birthday. We wanted to have an Angry Birds party, but no one is making party supplies yet, so we had to make our own.
Our treat bag contents were a hodge podge of things - candy, a Lego Star Wars cup, Angry Bird stickers and a book mark I made based on an Angry Birds/Star Wars mash up I found here.
I figure in a month or two, once I no longer need them, someone will start making cups and napkins and plates and all sorts of cool Angry Bird gear. May just have to make up an occasion to use them!