Got Zinio credit? There is a five day sale on Vogue Australia magazine (6 issues for $12.49) or GQ Australia magazine (4 issues for $7.49).
Have found in the past you can stack these deals by purchasing on multiple occassions, so for example technically you can subscribe to Vogue for one year for $25.
Again, these are downloadable magazines via iPad or other tablet device, not hard copies.
FYI - I'm pretty sure you can get both those free through your local council library's Zinio service if you have a library card.