There is no Art about the way I make candles. Essentially I recycle wax. If that doesn't sound glamorous, well, hey, it ain't. But it does work and costs pence, especially if you use your woodburner's heat and string you have saved from parcels like they did in the 40s.
To make Mumtopian candles, you can go down one of two routes.
The Tealight method.
For this, you will need a collection of "oh-that-didn't-last-very-long, did-it?" tealights; the kind you are always compelled to buy whenever you visit an Ikea store. Remove the metal outer casing and recycle it (if possible), then break up the (cooled-down) tealights and remove the wicks and metal wick holders, retaining one.
Thread a length of string through the wick holder and set aside. You will need enough string to act as a wick in the candle you are going to make, so bear in mind the size of the container you will use for your candle and the number of old tealights you are using.