Don't have a link or a photo but I just went to Australia Post in Capalaba (Queensland) and saw that they have a $30 Telstra prepaid sim on offer for iPad (that's what it said on the package) for the grand amount of $10.
The sim gives you 3GB and expires after 30 days.
I am not sure if it is nationwide (should be as it is AusPost) but maybe other people can confirm please.
Upload the docket if you bought one.being for iPad it prob a nano sim.