I did this a while ago and forgot to post it. I quite liked the idea of stamping onto a candle. I first stamped the design onto white tissue paper, coloured lightly with a stampn write marker. Roughly cut out the image, get a piece of either greaseproof paper or wax paper. Put the tissue onto the candle where you want the image to be, wrap the wax paper tightly around the candle and hold at the back. Use the heat gun moving it all the time. If you leave it in one place for too long the candle will melt.
Anyway, here is my effort.