I remember a few years back a guy was diligently reading junk mail posted in his letter box and then sending invoices to the company concerned for "consultancy fees". They were reasonably small amounts sent to large companies and for a while he was actually getting cheques in return.
Add up the costs of an application. Valuable hours tabulating logbooks into command/day/night/cross country/sim/ etc, printing and postage costs and of course the cost of acquiring the computer/printer/internet for online applications.
Send an invoice to Jefstar/Qantas for "recruitment specialist services"
and see what comes back.