The volunteers organize 140 different currencies into milk cartons, removing all of the other junk that makes its way into the donation envelopes, like golf ball markers, hearing aids, casino chips, and unclaimed lottery tickets. But, along with the unwanted stuff, there have been a few pleasant surprises too, like a $25,000 check left by a prominent Australian businessman.
Once the currencies are sorted into their appropriate cartons, they're then sent to Coin Co in Brisbane to be counted before shipping off to UNICEF where the money is used to provide vaccinations, education, food, and other support services for children around the world.
The donation envelopes have been so successful Qantas recently extended the program to allow its frequent flyers to donate their points as well.
For more information about the program, visit the official site.