"It seems to be the fashion at the moment. They are taking these items to hock off for methamphetamine - it's all meth driven," he tells the site. Such items can be easily sold on to raise quick cash, he says - as much as NZ$300 ($215; £170) for a big plant pot. Meth is a highly addictive stimulant and a class A drug in New Zealand, with stiff penalties for anyone manufacturing or supplying it.