Summarize the following:
Wax splatters are difficult to clean, and even if you manage to scrape them off, there may still be some residue. Make cleaning easier later on by covering your counter with some newspaper. You can also use other protective coverings, such as plastic bags, paper bags, or plastic tablecloths. Tin cans, old tea tins, and mason jars are all great choices here. Make sure that whatever container you choose can withstand heat. Even though the flame won't be directly touching the material, it will still get hot.  Wash the container with warm, soapy water, even if it looks clean. Old candle jars are another great option. Be sure to remove all of the old wax first, however. If you are using a mason jar, choose one that has a wide mouth; it will be easier to work with than the kind with the standard, narrow mouth. This will help you figure out how much essential oil to use. Keep in mind that different types of waxes may require different ratios of wax to essential oil, so double-check the instructions that came with your wax. Use a candle-making or candy-making thermometer to gauge the temperature. Double-check the instructions that came with your wax to find out exactly what temperature it should be heated to, as different kinds of wax have different melting points.  Microwave: put the wax into a glass measuring cup, then heat it at 30-second intervals, stirring between each interval, until melts.  Stove: Fill a pot with a 2 inches (5.1 cm) of water, then set a metal pitcher into it. Add the wax to the pitcher, and bring the water to a boil. Stir the wax often as it melts. There are 2 ways that you can do this. The professional way would be to add some pieces of candle-making dye. It comes in little bricks, which you can get at a craft store or online. Continue heating the wax until the dye melts and blends in completely. Alternatively, you can add in some crayon shavings instead.

Summary:
Cover your work surface with newspaper. Choose a glass or metal container for your candle. Weigh your wax using a kitchen scale. Melt the wax and heat it to about 180 °F (82 °C). Add color to the wax, if desired.