well it's actually a helmet that, like I said, I picked up yearrrrs ago.
It was made by a fellow Aussie who's gone onto bigger things. Personally I think it's better than the ones he's producing now...(but I'm probably just bias)
The Jet Pack is a completely scratchbuilt one. What's in it??
Everything from plywood & PVC, to Spaghetti-sauce jar lids & Waterspray bottles.
You see, by the time you add in the exchange rate from U.S$ to Aussie$ it's just wayyyyyy to expensive buy anything from overseas, so it's much cheaper to make things yourself...(and more fun too)