Cut & melt wax
Cut the slab of wax into chunks and melt them in an old crock pot. You can also melt them using a pot on a stove top at a very low temperature.
Buy candle wicks, or make your own by dipping thick cotton twine into the crock pot or pot of hot wax. Place the twine on waxed paper or a non-stick paper plate to dry. Dip the twine a few times to give it a good coating, then tie a coin or brass tack to the end as a weight.
Continue melting chunks of wax. Once the wax is completely melted add between 10 and 20 drops of scent per chunk of wax. Be generous with scent so the finished candle is fragrant!
Center & secure the wick
Center the wick in the bottom of the jar. Secure it to the bottom of the jar with a dab of wax or hot glue. Tie the top of the wick to a pencil lying across the top of the jar to keep it in place while pouring the wax.
Use a funnel to pour the hot wax into the jar. Allow the wax to dry completely and begin melting the next chunk of wax. Continue pouring layers into the jar until full.
Decorate the finished jar candle with a patterned vinyl lid or burlap wrap.