Artist Birgitt Shannon with the cow she painted, which was first to be unveiled during stage two of the Herd of Cows? launch at Wallace Gallery on November 19.

A 6.5m tall "mega cow" is planned for Morrinsville as part of the Herd of Cows? street art project.

Project chairperson Nicki Robb announced the planned giant cow at the launch of stage two of the project at Wallace Gallery on November 19.

The massive bovine will compliment the cow project, which now has a total of 42 of the colourful, life-sized cows.

TERESA RAMSEY/FAIRFAX NZ "Picowsso", painted by artist Andrea Cooper, was one of the first 15 cows in the Herd of Cows? street art project.

The Maber family, who own the Power Farming Group, will sponsor the mega cow, which will be placed on an 800mm concrete plinth at Maber Motors on the main road into Morrinsville.

Power Farming Group company secretary Kevin Stowers said he wasn't sure how much the mega cow would cost but it was likely to be hundreds of thousands of dollars.

The idea for the massive bovine came from former Morrinsville mayor Laurie Maber and his wife Yvonne, who were now both in their 90s, he said.

"Laurie just wants to put something back into the community," he said.

The concept was currently going through the resource consent process with Matamata-Piako District Council.

"We are not sure what the final product's going to be but the plan is to have it painted like a freisan," he said.

"It's going to be very prominent when you come into town."

The cow was a work in progress and a date for completion had not been set, however, it was expected to be finished within six months of gaining resource consent, he said.

The cow will have the same shape as the Herd of Cow's project cows and stand on artificial grass.

At the stage two project launch, Robb said the mega cow would be a focal point of the project.

"It'll be the icon of the Herd of Cows? project," she said.

About 250 invited guests saw the unveiling of an additional 20 colourful fibreglass cow artworks at the launch, with seven more cows on the way.

The new cows will be installed in and around Morrinsville in the next few weeks.

Robb told guests that the project had become very popular with visitors to the town.

"We do have something to celebrate, we are the cream of the country," she said.

"Our dream was to put smiles on the faces of everyone who walks down the streets of Morrinsville."