The next thing is a heat source. The web search has you doing all kinds of unnatural things with ovens and oven toasters. I lucked out with the simplest approach possible. I used 2 2x3s @ 1 foot long and straddled the electric burner. The holder assembly from the last step sits on top of this. nothing could be simpler. I haven't done this on an open flame stove so experimenters out there be aware! It probably can be done but the height of the 2x3s would have to be a bit higher I would think. You wouldn't want the flames to hit the plastic.