Fake New Zealand currency pops up regularly but the head of Reserve Bank said some attempts looked like a person had got themselves a glad wrap roll and some colouring pens after having a beer in a nightclub.
"You think: would someone really accept that as a note? I lose no sleep on that," said Adrian Orr, adding that New Zealand has a very low counterfeit rate by global standards.
New Zealand's newest banknotes, known as the Series 7, are taking longer to fully replace the earlier Series 6 notes as the national currency is staying in circulation for more time than anticipated.
The Series 7 $5 and $10 notes started circulating in October 2015, with the $20, $50 and $100 notes released the following year in May 2016. They were designed to replace the sixth series of banknotes, issued in 1999, and both remain legal tender.
Like other countries, New Zealand regularly replaces banknotes with new designs to hinder counterfeiting, adding more complex security features such as a colour hologram, raised ink, and other innovations which are difficult to replicate. When the older notes are returned to the Reserve Bank, they are taken out of circulation, and the new notes are distributed instead.