The couple was on a bit of a budget, so I suggested a bottle cap instead of a bottle of Guinness. It was super easy to sculpt and of course I didn't have to worry about a support system. Yeah! The logo was cut out of modeling chocolate, because it rules! No stretching and nice clean cuts. We airbrushed it a little to give the sides a little more depth. I believe the bottom layer was 16" and the top was 14".