You clearly need some Aussie advice here. If the quantity was around six beers I'd suggest simply using a straw (yes thats right, a straw). Since this is twelve beers, I'd suggest the patented Insomniac birthday technique. Take one eight beer funnel, fill it with six beers, chug said funnel and hold your head back for a few minutes. Then proceed to wait ten minutes so you have time to urinate as much of the beer as possible, then proceed to prepare and do another six beers through the funnel. At the end of the night you will go from a mincy little faggot ball to something like this:
