Tall, elegant, and tapered, in a rainbow of colors, or twisted into sinuous forms; molded, dipped, floating; made of beeswax or paraffin, candles make any occasion special. Here are techniques for a striking variety, and holders (including terra cotta vases and coconut shells) that show them off wonderfully. Decorate candles with dried flowers, add carved designs, and stamp them for quick and easy patterning. Plus great holiday ideas.