Using a candle, and a tube, you can burn candle smoke.
FIRE IS DANGEROUS If you do not know this, you should not attempt this instructable, or any like it.
Step 1: Materials
To perform this experiment you will need the following items:
1. a candle (any type will do)
2. a tube (I used a 1/4"O.D. 5 32" I.D. copper tube like the one used on http://www.instructables.com/id/BUTTONHOLE-PUZZLE-POCKET-SIZED/) you could also use aluminum, brass, steel, and even glass.
3. a lighter or match
4. Something to hold the tube, it gets hot. (I used a helping hand tool)