You then fill the balloon with water and dip into the heated wax several times until you get the thickness you desire. It can then be used as either a votive holder or filled completely with wax for a solid candle.
There are all sorts of things you could do to jazz it up and there are examples at the end of the video. Embedding a picture into the candle globe during the last dip would be nice and so would some dried flowers leaves or herbs. See You Can Make Amazing Candle Globes for more.