"We've had success, all three of us have done well all over the country and usually in chain store outfits with a touch of handmade as well. We like to add some handmade articles ... my mother and the girls' grandmother Val Harman is a sewer so if we see a really nice top we like to find some material to go with it.
"We alter things, we try not to wear something straight off the rack ... If we find a skirt or a dress, well, we cut dresses into tops and we make tops into skirts."
Mrs Campbell, who runs Petite Paws dog kennel in Waikato, was drawn to the fashion events at race meetings after watching a friend's son compete five years ago.
Her girls followed suit and outfits were prepared weeks, sometimes months, in advance and often found on sale racks in chain stores before they were transformed.
"We think it's quite good that we can still win on outfits that haven't cost the world - but we always have a nice hat. I'd rather spend money on a nice hat and then you can put the outfit together."
This season's wins came in hats bought last season, and other accessories were picked up cheaply at shops such as Diva and Equip. Their favourite clutch was purchased on Trade Me.
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