My daughter, almost 11, used to ask for playboy stuff all the time. She used to point things out in shops and the book of dreams until I explained to her what playboy was.
When she realised that playboy was a magazine full of ladies with no clothes on she decided that it wasn't something she wanted to advertise incase people thought she wanted to be in the magazine. She has also campaigned amogst her classmates to get them to boycott playboy merchandise as well.