Yeah, sounds like they don't have SoBe in Canada... You don't really need a SoBe bottle, though, there are plenty of bottles that are about the same shape that would work just as well (Nantucket Nectars and Arizona bottles come to mind... although I'm not sure if those are in Canada, either...).

Basically, all you need is a bottle that is big enough to suit your needs and has the little notch in the bottom for easy drilling.