Well I'm not sure why the secrecy about how you're going to do it but would be interested to know if you've found some trick to beat the system lol.
But the best option IMO, more so than the $10 24 hour ticket sites is just to book a legit ticket on a higher fare class which is fully refundable. I booked one with Emirates last year to get a visa at a local consulate then just cancelled and got a full refund after the visa was issued.