Boil some water in a pot, just enough to cover half of a glass measuring cup or a small glass bowl.
Use the glass measuring cup or small bowl as a double boiler.
Pour all your ingredients in the measuring cup and place the cup or small bowl in the boiling water. The water shouldn't come higher than halfway up the side of the measuring cup or bowl.
Stir and mix the wax and oil with a wooden stick until melted.
Pour the molten wax and oil in your favourite plastic-free containers such as kraft paper lip balm tubes, glass or metal pots.
Notes
To clean your measuring cup or bolw, wipe with a paper towel to remove any wax before washing with soap