In answer to peoples questions about what these are, they're betting slips from the TAB from 2008 where you could put combo bets on your team. The back has all the usual TAB red-box layout if I recall correctly.
They're paper, and were freely available to anyone that happened to walk into a TAB and grab as many as they'd like.
The ones from 2006 are significantly rarer as people didnt seem to snaffle as many up as a collectable