I silver embossed my background splotches and the jar on vellum paper, then I cut another jar out of a window sheet and attached it to the vellum jar with some linen thread to hold the two together. This gave my jar a nice glossy look...like a real glass jar.
The jar was stuck down on the two sides, so I could slide the flower stems and leaves into the top of the jar. Lastly, I added a tag and some fireflies to finish off the card.