Sales from his $5 handmade Nic's Cook Book, versions one, two and three, together with art he and his 6-year-old brother, Toby, sell on Nic's website, have netted the relief fund and the Muscular Dystrophy Association $500.
"I thought it would be nice to give them money."
Nic is hoping a fourth cookbook, Party Food, will be published and mum Chrissie has approached book publishers Scholastic.
A keen guitar player and sports enthusiast, Nic is also a finalist in the youth category of TVNZ's Attitude Awards for his fundraising efforts.
Nominated by the Muscular Dystrophy Association, Nic and his family will travel to Auckland in early December for an awards evening and will feature on TVNZ's Attitude programme.
The awards showcase the achievements of New Zealanders with disabilities.
Nic also has his own website where he blogs about daily life and living with muscular dystrophy.
He was diagnosed with the condition at 2 and when he was 3 Nic's parents took him to True Colours for support.
Chrissie Brockelbank said the service, which operates out of a house in Frankton, had offered practical and emotional support for the whole family through counselling and therapy.
True Colours also provided nursing and hospice services for children with a broad range of illnesses.
Nic's cookbook fundraiser had been his way of giving back to the charity.
"I think I started cooking when I was about 7," Nic said.
"And I sometimes help my mum cook dinner."
He compiled the cookbooks using family and friends' recipes and a few he acknowledged from other chefs.
True Colours chief executive Cynthia Ward said Nic's efforts had been outstanding.
Mrs Ward said that the service relied heavily on fundraising to survive and every bit counted.
The organisation will host its annual fundraiser tomorrow, the long luncheon, at The Narrows Landing in Tamahere to celebrate Melbourne Cup Day.
Last year the luncheon raised $44,000 and this year guest speakers include comedian couple Jeremy Elwood and Michele A'Court.
To purchase Nic's cookbooks visit www.nicocool.com