My dad did this same thing 40 years ago. I thought he was nuts but then I saw them in stores for sale 😁Nice idea. I experimented with making my own firelighters by saving wood shavings that were used as packaging material, putting a ball of them in cardboard egg cartons and pouring in melted wax from old candles. They work well but it's a bit of a messy process melting and pouring the wax. 100% recycled though.