I started with my old Yankee Candle jars that I had removed the wax from (more here: recycling candles - it's easy!). Next, I ordered this transparency adhesive paper from Amazon (I couldn't find it anywhere in town). I sized my images in Photoshop Elements and printed them out. I removed the adhesive backing and put them on the jar along with a votive candle. SO easy.
I turned my smaller Yankee Candle jar into an air freshener.