Have a look at this woman's work as she carves a beautiful candle:
Part1: http://www.youtube.com/watch?v=tjrNTuR-VrE
Part2: http://www.youtube.com/watch?v=OlIZDQBdrjI
Part3: http://www.youtube.com/watch?v=57oEoNNdAn4
She also explains how she learned it from a book and practiced. Looks good!
Eran.