If you are not familiar with the series of videos on YouTube by Krazyboy I would highly suggest that you become acquainted with them. Krazyboy gives presentations on general magical techniques as well as techniques specific to Hoodoo, Brujeria and Santeria, etc. I found his videos to be both interesting and informative. Check them out here.
Below is a makeshift oil lamp I made at work after I watched one of his videos (well, I was impressed anyway).