Chop up some old candles.
Place the wax in a can and into a pot of boiling water to melt the wax.
Lay out your cotton swabs on some foil. This one was poorly planned as wax spilled on to the table ><
Once melted, use pliers to lift out the can and pour onto the pads.
Don't COMPLETELY saturate them. Try to leave corners that can light easily.