Hirosan caught this Japanese Coca Cola promotion.

Depending on whether you buy a Coca Cola Zero, No Calorie, or Classic (left to right), you'll enter to win a black, white or red headset for Skype. 17,000 BMH-E03 series analog headsets from Buffalo will go to the winners.

Coke's campaign puts 9.5 million Coke bottles (a million more than Tokyo's population) into 38600 nationwide convenience stores from June 4 to July 13. Chains carrying the Skype cokes include AM/PM, Circle K [sankusu], Three F, Seven-Eleven, deiriyamazaki, Natural Lawson, huamirimato, Poplar, Mini-Stop, and Lawson.

The campaign was initiated by Coca Cola Japan; Skype Japan just supports it.