All this needs to be is a stick with a clothespin tied on the end of it.
You can then hold the wick in place with special wick accessories, or simply use a clothespin and clip it to a pencil resting on the lid of the container.
Upon arrival each guest is given a clothespin and told there are two words that are not to be mentioned.
If a guest is caught saying one of these words, the person who caught the gaffe gets her clothespin.
Once the wax is poured, center the wick and hold it in place with a clothespin laid sideways across the mouth of the jar.