Ok, sure. I really wasn't sure how common this was. She started with a fondue fork, wrapped with gauze, dipped in alcohol and then lit on fire. The cups (glass cups, about teacup size or smaller) were with swabbed around with the firey stick then quickly placed on the skin on the back, or anywhere flat would work, I guess. I'm going to get the physics wrong here if I attempt it, but this heating creates a vacuum which sucks your skin right up into the cup. You can see the skin raised up and it causes round bruises which are surface marks and not very painful, but they are very obvious circles. Then she twisted and moved the cups around some, and tapped on them with sticks for extra fun. When taken off they make a humorous popping noise.