Empty a dozen eggs into a mason jar for easy travel. They fit perfect in the cooler without the worry of breaking. Just pour them out as you need. I would want to use a plastic mayonnaise jar so I don't worry about breaking glass.
Girl Scout craft: DIY Fire Starters for Camping - You begin with an empty egg carton, add old dryer lint, and cover in wax. You just let the wax dry, break them into 12 individual cups, and light the cardboard corner to start your fire.