Weigh your wax and measure your essential oils together in one container. Melt wax over a double boiler on medium heat.
While wax melts, measure your wooden wick to be 1/4 inch above where the top of the wax will be. Insert it into the metal base and attach it to the bottom of the container with glue or wax adhesive.
Refer to your wax to see how much dye is required. While wearing gloves, divide the chip into 3 sizes: 1 large, 1 medium, and 1 small.
Add each dye chip to a shot glass or paper cup and top it off with hot wax. Stir using a chopstick until fully dissolved.
Read instructions that came with your wax for adding scents. When your wax has reached the desired temperature, pour one-third of the wax into a heatproof container and add the largest dye chip and a third of the essential oils.
Wait for the wax to reach 140°F and pour it in the container. Leave it until wax has set and cooled, at least 1 hour.
Repeat steps 5-6 for the other two layers. Add essential oil and the medium sixed chip next followed by the small chip and essential oil. Wait for each layer to fully set before adding the next.