And a third pony in Mrs James' herd, El Alpha Reflections, has also been making waves.
The family has driven 8000km this year, taking Welsh ponies to shows.
There are more of them at the rural Waverley property where Mrs James and husband Tony are sharemilkers - because she finds them irresistible.
She said it was impossible to have just one because their personalities were addictive. She's not willing to say how many she has now, but it's more than 10.
Welsh and cob horses are closely related breeds from Wales. There are several types, of varying sizes, and also crossbreeds.
Welsh ponies have kind, loyal natures and are especially safe for children to ride.
They're also versatile, Mrs James said.
"You can be hunting one day, bringing cows in the next and then show jumping after that."
She's very fond of Onyx. When she first got him he was naughty. He was an escape artist and would get over fences and under gates to reach mares. He was so difficult that Mrs James was thinking of gelding him.
Then she started taking him to shows, and found he was a real showman.
His personality changed, perhaps because he was no longer bored. She started getting stud requests, some from as far away as Australia.
An injury prevents Mrs James from riding, but she leads Onyx at shows, and said he could read her mind.
"Onyx I will never sell. He is a one in a million pony. When I think trot, he trots. His only vice is that he doesn't like to be kissed on the nose."
An apprentice jockey in her youth, Mrs James always had horses. Then, for 10 years, she concentrated on a career.
Her enthusiasm revived when the family got a Welsh pony for Hailey to ride when she was 9-years old.
