I discovered some more helmets out there for adults and kids by Nutcase.   I always keep an eye out for cool helmets, as Master Four will need a bigger size next year for his big boy bike!  His favourite is the Caution Helmet, which is from the Little Nutty range.  The company launched in the US in 2005 and the range is now sold in Canada, Europe, Japan, New Zealand and Australia.   You can purchase online from the Australian site and they ship to NZ, so go take a look at their range here.