Slowly pour the liquid wax & oils into the molds and set them aside to cool.
As they cool, depending on your combination of wax and oils, you may get small sink holes like this one - since they're on the back of the bar, I didn't bother fixing them - but you could, if you wanted, pour a bit more melted wax/oil into the sink hole after it's cooled - just like you would a candle that had a sink hole.

