The first thing you must decide is what kind of wax you want to make the candles out of. Some people like to save old wax and try to recycle it. For a nice scent, you can use beeswax. Or, you can just try using a straight parafinn wax. One thing you will notice is that some waxes are harder than others.
Harder waxes tend to burn hotter and melt less.
If you use a softer wax, you will notice that there is alot of waste and dripping. So, most often, the best solution for making candles is to make a blend of beeswax and paraffin. Next, you will need two containers - one large and another that will fit inside. There are several considerations that you will need to have when choosing your containers. The first is that they must both be able to withstand boiling temperature.