Coca-Cola is red. And a little white. So figured I'd try this shot out - background is white and red, but inside the bottle is red and white. Hard to get a decent shot with the contour glass due to the ribs on the bottle, but this was the closest I could get. I think it turned out OK for a first try. SOOC which explains the reflections on the bottle.
Another shot, with a little more craziness inside the bottle.