While ad agency Ogilvy Mather addressed Diet Coke marketing with an ultra-thin (concept) vending machine, they're addressing the package design itself to push the flagship Coke product. Ogilvy Paris, with the input of the Singapore office, has commissioned a Coke can that can be split into two halves.
Half-sized soda cans already exist; I spotted some overseas, though I've never seen any in the 'States (which makes sense given American appetites) so it was just a matter of creating a top-half can for a perfect fit:
I know what you're thinking: How sharp is that bottom edge of the top can? Will fans at sporting events have a new impromptu weapon for those post-game parking lot punch-ups? Relax—like the Slender Vender, the dual cans are for marketing purposes only.