I was in the same predicament last year and this is what I did. Rang all the counties known for football rather than hurling on the list below or even go a step further and google the shit out of some clubs in them counties as well. They'll all be getting tickets and the vast majority of them will be given to Clare and Cork. Plead with who ever it is that answers the phone to hold onto a ticket or two when the get them and you never know. Last year I did this and I got two Hill tickets from whoever it was that answered the phone from the Sligo county board.
I'll never forget the shot of excitement that ran through me when they said they could get me two tickets but I'd have to drive down to Sligo for them. This was on the Friday before the final, I left a fecking cloud of dust behind me the whole way from Gort to Sligo that evening, I was like fecking Road Runner in a Datsun Sunny.
Here's the list anyways, make it a bit handy...
http://www.gaa.ie/about-the-gaa/provinces-and-counties/about-county