Back around Feb, 2005 Pepsi released their 'Pepsi Twist' product in Japan for the first time. As part of a promotion with Nintendo, they gave away a special edition Pepsi branded metallic blue DS system with lots of little goodies (like Pepsi branded headphones, blue DS cartridge holders, and a metal, Pepsi branded carrying case to hold it all).

Here's what you see when you first open the box:

The special carrying case:

Top of the DS itself:

DS opened:

Part of the online marketing in Japan: