I made some red-white-and-blue flag-things for fun. You could put them in cupcakes, or as bookmarks or whatever.
Download the pdf and print on card stock. Cut, fold, glue. Easy peasy.
Here are some other fun things people have made:
At Somewhat Simple – Two super simple and adorably patriotic milk carton-style treat boxes!
At Tatertots & Jello – Patriotic Medallion Party Printables for parties or decor.
The two above are part of a blog hop so you find lots more inspiration there.