This assumes you have a reasonable working knowledge of Adobe Illustrator. The version I use is Illustrator CS, but I have no reason to think that versions 9 and 10 wouldn't be able to cope with similar instructions.
The tutorial describes how to make a drinks can, in this case in the style of Pepsi, but can be applied to any drinks brand.
The original can design was done as a DA ID for =dualdesigns
The second step describes how to add details.