I have a vague memory of an episode in which Monica and Pheobe were experimenting with some new type of nail polish. The incident took place in Monica's room in which she had twin beds. Thinking that they could hurry up the drying process, they started frantically waving their hands up and down! At one point, this retroactive scene was shown during the introductory theme song. I thought that the site of Monica's black hair and Pheobe's blond provided excelent contrast! In addition to this, I was very filled up by the sence of female bonding!