I order from http://www.hemp-ear-candles.com i buy the economy beeswax for $0.90 a peice. i use them a lot professionally and these are the best ones i have ever used. they do not drip and are well priced. i have burned candles on their own and that dark stuff is not in them. just the powdery candle residue. also, i have done repeated candlings on people's ears and the dark wax stuff diminishes in amount the more candles used. there will always be skeptics. http://kyw.com/health/local_story_135231545.html
THis is a link to my interivew on CBS about ear candling.