ronwhite, I've tried several wick sizes and 2/0 square braid seems to work the best. These candles have an 8hr burn time and drip very little.
The candle holders are just simple hexagonal blocks of various exotic woods with a 3/4 hole in the top. When you crowd several of them together it looks like honeycomb.
As for the actual dippers in the video, they're made out of some aluminum plate I had laying around and some threaded rod. I've been thinking you could make some out of bicycle sprockets pretty easily.
Scott