This ad from a 1981 issue of Teen magazine features an illustration of a white girl telling a black girl about a "tasty little treat." It's a "snack" made with natural ingredients and "perfect for picnics, hiking, camping trips, lunch and study breaks." Plus! The "snack" costs about the same as a candy bar and is only 100 calories. Can you guess what it is? Well, there's a reason the black girl looks freaked out. Click the picture for the full sized ad. [Vintage Ads]