This is a fun little project for a rainy or cold day, any day. You just need a paper egg carton, wax and dryer lint. Takes an hour from from start to finish to make them, and only about 10 minutes of your time.
(Your wax will be cooling most of this time) Making fire starters is pretty cool, and I needed some motivation to get my laundry done, anyway. Two birds, one stone. These light amazingly well. I never knew dryer lint would do that! Be sure to check out my burn test at the end of this post. Awesome stuff.
Recently, I was camping, and having trouble getting a fire started, due to the humidity and rain. I was sure glad I had some of the egg carton fire starters in my bag.