Cheap ceramic/terracotta plant pots in Melbourne

Hi guys, anyone know where to get some reasonable quality buy cheap and large ceramic pots?
We have some big slabs of ugly concrete in the backyard and want to cover it up with some pots. Looking for diameters roughly 50cm++
Have checked Bunnings but as usual they are very exxy!
Stores in Melbournes eastern suburbs would be good.
Cheers
Alex