By Angus Loten Addressing a group of possible customers at a tony Riverside, Conn., home last week, the sales representative delivered her pitch for a $30 package of moisturizer and foaming face wash."The 'sleepover travel kit' comes with a super cute bag that's great as a super cool pencil case for school," said 12-year-old Hartley Messer.Her prospects—seventh- and eighth-grade girls—dabbed on samples of creams, sniffing their wrists, as their mothers looked on. "The 'Skinny Mini' lip gloss is made to slide into your jeans or Lululemon pockets," added Ms.

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