12 pack of 40oz beers sold in New Zealand. They cost about $40 NZ the first time, but once you've finished drinking the beers the crate and beers are swapped for new beers. The swap costs only $24 NZ, provided you bring back the old crate and beer bottles.
"Oh shit we are on the last beer. Time to go down to the bottle shop and grab a new swappa crate."
What happens in the toilet after a big night of beer drinking. The first part is solid then pop it all gushes out!
"Yo Jeff, I drunk a whole swapa crate last night. Had one hell of a brown champagne cork this morning. Had to flush twice!"