I can make these up for you or you can try it yourself. You just need to know one basic crochet stitch -- the single stitch.
NOTE: If you're not from the US, be sure to use your own country's colors for this project.
These are fun and super easy to make. You've probably seen my free crochet pattern for these bangles before, but I changed the pattern just a bit. Instead of using a double crochet in the middle, they are all single crochet stitches.
Here's the free pattern: http://handmadebyannabelle.blogspot.com/2010/06/make-your-own-red-white-and-blue.html