
Cork Hat & Mosquito Head Net Hat
Both "essential" due to this:

Incessant swarm of flies is pretty common in Australia.
3)

Shark nets in many beaches along Sydney. Supposedly keep sharks away.
4)

Hills Rotary Hoist (a proud Australian invention)
I can confidently say that every Aussie hangs their laundry; no one uses the drier, not even me!
5)

It's a car! It's a truck! No, its' a UTE!