Have you ever seen a gambling machine or website that was all too conspicuously aimed at children? British regulators certainly have. The country's Gambling Commission and advertising overseers have ordered over 450 gambling sites to "immediately" remove casino games they say are targeting the under-18 crowd. The cartoonish graphics, cute characters and even game names (such as Piggy Payout) serve as gambling advertising that's "likely" to appeal to kids, according to an official letter. And these aren't just free titles -- bets range as high as £600 (about $792), so this could be particularly damaging if a child got access.