When I was a kid, we'd swipe people's cigarette packs, roll the flint of a Bic lighter over a piece of paper, wet the outside of the cigarette, then roll it in the flint, then slide it back in the pack and put it back where we found it. When they'd light up their ciggy, they'd have a sparkler.Back when I was a kid we would dip each match head into molten candle wax, then rub the candle on the side of the matchbox, and used hair dryer to melt it so it coats the strikers fully and evenly, matches and the box became waterproof.
That looks like one of those "corncob" LED bulbs some of which can produce 5000-10000 lumens. Just curious how it is powered from the 20v battery. Is that an ac inverter above the battery, and is that a knob on the base to control brightness?