Natalie found this on Pinterest. They’re homemade, egg carton fire starters. Fill each cup in the carton with dryer lint and cover with melted wax. When the wax is dry, tear off a cup, place it under the kindling in your campfire-to-be, and light the corner.
Update 2/15/2015:
We’ve been using these the last couple of camp seasons and they work well. We tear off one or two sections of the egg crate, put them into wherever we’re going to light are campfire, and with a single match, the fire is lit.