HelloFlo's "Camp Gyno" viral video is a breath of honest fresh air in the world of period-related advertising. It's funny, it uses the word "vagina," and it gives young girls a reason to be proud — not ashamed — of their time of the month. Tampon and maxi pad ads have a history of not treating this natural bodily function with a healthy, realistic attitude. Blue liquid, anyone? And things weren't any better back in the '50s and '60s. Whether with a distraction (hey, look, a pretty dress!) or the rhetoric of freedom, advertisers tried to sell a product women have never really been thrilled to buy. This Shark Week, let's look at some vintage tampon and maxi pad ads.