Candles have been used in more situations than anyone can count: as simple illumination, in devotional ceremonies, for decorating birthday cakes, to add a romantic atmosphere to an intimate dinner, and as a calming alternative to bright-burning lamps. But as a candle casts its light, drops of wax run down the side one after another, accumulating in a pool at the bottom. This effect has its own esthetic appeal, but it's problematic when the wax spills and hardens on a tabletop or tablecloth. The French created a solution: the bobeche, the collarlike part of a candleholder that catches drips. Here's how to make your own bobeche.