The Australian author and model, who gave birth to first daughter Sapphira Jane six months ago, said that she is sick of the pastel-coloured clothes that are on offer in the shops.
Moss wrote on her Twitter page: "Over pink and blue. Truly. Where do you find black clothing for children? Honestly. The pastels are doing my head in.
"Of course there are black clothes for kids in Paris. Sigh. May need to do something for the black-deprived kids of Aus... We Loved Monsterbaby and RockYourBaby onesies when she was tiny, but now she's a toddler, she needs a few non-pink dresses/tops."
Shortly after becoming a mother, Moss, who is married to poet Berndt Sellheim, said: "So happy. Sapphira's first minutes in the world. With sapphire eyes and dad's hairstyle. Mum, dad and daughter are all doing brilliantly", adding: "Thank you so much for all the wonderful well wishes."
Last year, Gwen Stefani started children's clothing line Harajuku Mini, while pregnant Kourtney Kardashian recently launched her 'Mommy Blog'.
Watch Kourtney Kardashian's first 'Mommy Blog' below: