This is a quick beer bottle I made to figure out how to use two shaders on a single material, one for the bottle glass and one for the label, which uses an image texture.
I've provided my original Inkscape-made svg guide with markers for optimal label/branding positioning/dimensions which you can use to design your own label.
I used Blender Diplom's approach to glass light absortion, but I'm really not sure if it's working or if I did it right, It renders nicely though. :p
I used a modified version of the bottle cap from the beer bottle, by @marton_tamas , under CC-BY.
I made the rest of the objects.