Ear candles are made of cloth reinforced wax. They're long hollow cones. You lie on your side and someone puts the candle in your ear and lights it. Supposedly, the heat draws up any impurities in your ear, mainly ear wax. Most doctors don't recommend this. It seems that some people have had the candle wax drip into their ears, which defeats the purpose, and sometimes causes damage to your ear drum.

Back to the subject of this thread, tie a rubber band to the drawer handle of a metal desk, stretch it out and pluck it. This is a great way to kill time at work. (metal desks have the best resonance. Wood doesn't work as well).