First came mini-me designer clothing and handbags. Then the wee fancy jewelry (Van Cleef Sweet Alhambra, anyone?). Now you can buy a bottle of high-end perfume marketed especially to little girls, and maybe to some nonconforming boys (remember Jenna Lyons painting her son’s toenails pink?).

Storied perfumers including Frederic Malle, Creed and Guerlain are among those seeing opportunity in children as young as 3.

The little ones are most likely introduced to the fragrances from their parents who wear the same brand, according to Alison Gaither, the beauty and personal care analyst for Mintel, a research firm. “Perfume for kids is a very niche market, but it’s even more niche when the prices are so astronomical,” Ms. Gaither said.

That these scents even exist is surprising, she said, because Mintel’s research shows that the fragrance market in the United States, which it currently estimates to be $3.7 billion a year, has declined 1.8 percent a year for the last several years. “The market has struggled a bit because perfume is aspirational,” Ms. Gaither said .