There are a number of groups on here for patch exchange already.
I myself have sent out dozens of western australian patches and stickers in the past two weeks to people from these groups.
Check out these: http://station.firefighternation.com/group/patchcollectors
Hi Shawn; Leo from Australia, Paramedic,
If U send me your postal address via my Email I will post you one of my service badges, its LECAR1@BIGPOND.NET.AU; it's just easier to read in upper case BUT please send/use in lower case.