DIY projects are a great way to learn and be self-sufficient, plus sometimes a DIY version of a product can be healthier for you and your family. For instance, many common store-bought candles can give off toxic fumes because of the chemicals and heavy metals they are made with. There are regulations in the United States that ban some dangerous ingredients, but not all.
According to this article on Complete Health and Fitness, a lot of the commercial candles are made of paraffin wax, which gives off fumes as dangerous as second hand smoke. Some imported candles also contain lead in their wicks, which can release dangerous lead fumes into the air. The article has tips as to which store-bought candles are safe, and what ingredients to avoid. Best of all, there is a recipe for homemade candles that you can customize with your own essential oils and decorations!