That was a basic wax candle. It works with a tea light just as well. Pre-light the candle and let it burn for a few seconds before extinguishing. Then tease the fibres of the wick out. You may end up pulling wax off of the fibres. That is fine, in fact it is prefferable as the fibres light up and bur, which melts the wax on the candle which then wicks up and burns in short order. This candle is from my response pak survival tin and sits in there waiting for a disaster to occur, so it is quite old. I remember a while back somebody asked about this, so I thought I'd quickly show how it works. If you have success, try to video capture it and put it up as well. It works with feather sticks as well.