She admits some in the sport were circumspect about how successful the pony racing would be, but says Kidz Kartz events became a regular fixture because people started enquiring as to whether "the ponies" would be appearing at Auckland's Alexander Park Raceway.
"They really wanted to see the ponies; the demand was there."
Kidz Kartz ponies and club members now make regular appearances at the Interislander Summer Festival harness racing events, various beach races and have their own competitive events like the Auckland Cup, the New Zealand Cup and the Inter-Dominion.
There are also a growing number of clubs around the country for those wanting to join in.
Deneece established the Kumeu Club with five ponies aiming to make it affordable and accessible for as many children as possible. Now with 16 ponies, the club, which meets on Wednesday evenings and Sunday mornings in summer, attracts a number of city-based members who don't have space for their own pony.
Other clubs are now based in Counties, Waikato, Christchurch, Otago and Southland with membership estimated at around 300. The aim is to have fun, but also to nurture young talent, provide horse-crazy kids with hands-on experience in another equestrian event and teach more about caring for horses and ponies.
• For more, see kidzkartz.co.nz or hrnz.co.nz/kids/kidz-kartz. Both websites have links to local clubs.