Speaking of candle wicks and candle snuffs, if the candle snuff gets long enough to extend out of the flame sidewise, it begins to smoke very badly. The last candles I used during one of the hurricanes back in the fifties had a clever arrangement of the wick that kept it from getting long. It would not stay straight, but curve so that the end stayed in the hottest part of the flame, and the carbon would burn and keep the snuff short. The wick itself had had a strand removed, which somehow tended to produce the curvature that kept it from getting long, because the forces on the wick were unbalanced. But I could never figure out at what point in manufacture the strand was removed, to make the tension on the whole unbalanced
Think about it, and see if you can figure out how to make it work.