We have a thing here in South Africa called load shedding: our electricity supply gets cut off for a certain period on some days to help lighten the country’s use of electricity. Some days we don’t have power when it gets dark, so we often use candles for some light. The kids made this candle holder from a plastic bottle for those times.
I cut the top of a plastic 2 liter bottle off, and the kids decorated it with sharpies(markers). It started out as a collaborative project, but at the end my 2 year old finished it.
In fact, we need to make more of these holders, because it works great as a holder when turned around too. Just place on a paper plate to catch the wax and voila!