Here are two shirts are from the Avengers. Both are designed for their children apparel production line, but I don't have to tell you which one is marketed for boys and which one is marketed for girls.
Questions to ponder: How (and why) do companies use cultural ideas and values to market their products? How do companies shape cultural ideas and values? What impact do messages like this have on a society's culture? Do seemingly subtle differences is pop cultural products like this matter?