After traveling down from Northland by bus (this is back in February, sorry I'm so behind!), I arrived in Auckland. Shani and her niece were there to pick me up. We stayed at Amber's place for the night (a very sweet girl with a young daughter and partner)and left for Hastings the next morning.
As we traveled through the middle of the North Island, we passed by Tirau, a small town known for its corrugated-iron creations. Shani was kind enough to stop the car so I could take a few pictures. There are more creations throughout the town but it was not on our path so I'll just tease you with what I saw. Perhaps one day someone else will post pictures of other creations they will have seen.
This is the information site, how cute is that!