The market is in Martinborough Town Hall, on Kansas St, from 10am until 3pm with a koha entry request at the door.
Mr Reid said the koha would be donated towards the new Martinborough Town Hall and Community Centre development.
"We thought we'd put it on and bring new people into town and support something that can help the town that we live in."
Retro food vendors and fresh coffee would also be available outside the hall.
The Reids moved from Brisbane with their son eight months ago and opened the Martinborough Village Organic Soap Company on Jellicoe St earlier this year.