I've been working on an EPP project as well. Last year I started out using only black and white fabric, and used the Hexies to decorate t-shirts for my nieces in Thailand. You can read about them here and here. This year, I am using all kinds of colors as you can see here.
It's such a great scrap buster. Some of this fabric, I've held on to for years. I have everything ready in zipper bags and take them whenever we are on a road.
Have a great day!!