The pipe is loaded with Salvia Divinorum (AKA Mexican Tripping Weed or Diviner’s Sage), which is legal in New Zealand.  It is remarkably, shockingly powerful stuff – but I think it’s appropriate that it should be legal for a couple of reasons: mainly because the effects only last about 10 minutes, but also that the biggest cons listed on the net for Salvia are that people don’t enjoy the experience – or are afraid of it – so don’t use it ever again.