Lets see,
By an airport, then buy a big 4x4 ute with flashing lights, get myself a big badge and a really bad attitude. Everytime some-body pulled up in there GA plane race out and harass them and generally make them feel like a terrorist. Everytime the met man mentions rain within a 500 nm radius of the field, immediately close the grass runways for a minimum of 6 months.
Find the CFI of the flying school and harass him about minor issues until he gets that zombie look on his face, then make hasty exit across the closed grass runway's in my big 4x4 ute. Spend all day finding some obscure rule to enforce that has no safety aspect for aviation. Harass some poor student pilot doing a pre-flight on his C152 for not wearing airport operator approved safety vest and issue him with an on the spot fine of $200.00.
Or start up a business class airline betwen Melbourne and Sydney using a couple of B727-200's. Lets see Penthouse pets for flight attendents, 70 business class seats/beds, as much grog as you can drink on the two hour flight, cigars, spa bath down the back, casino, pokies and Foxtel on the mega screens. Bookings, only through travel agents like EWL.