Blue Ivy Carter is the first baby to have a hit single, and she's also the most famous. So don't even think about trying to cash in on her name!
Beyonce and Jay-Z have filed to get "Blue Ivy" trademarked, so if anyone is going to profit off that baby, it can be them. That's the American way, after all!
With all joking aside, it's probably a smart move. There are all sorts of crazies out there trying to make a buck. Let's just leave the baby alone, at least until she's old enough to come out in public, okay?