I haven't made these since I was a Cub Scout, but with a free afternoon and my 6-year-old nephew visiting, we made some DIY firestarters with old candle wax, dryer lint, and paper egg cartons.
There are certainly more efficient and more effective ways to make a DIY firestarter, however, this was the way I learned as a young kid and passing on the tradition to my nephew was time well spent. His favorite part was stuffing the egg cartons with the dryer lint.
In all, we made 4 dozen cartons, or 48 individual fire starters. That will last quite a long time for us.