It isn’t always so easy being the face of countless products, but that’s one job the Keeping Up with the Kardashians clan doesn’t mind having. They’ve endorsed merchandise from diet regimens to Carl’s Jr. salads, so there's indeed power in brand Kardashian. We wonder, though: Will consumers ever tire of this gaggle of girls? Only time will tell. Meanwhile, we’ve put together a short list of product promotions they've put their weight behind.