Can I Buy A Cheap Cell Phone Jammer in Australia?

Hi, Grover
This is a difficult thing to do. It is well known that Australian shops do not sell such products. If you must, try your luck in Canberra.
Of course, it's easy to buy cheap cellphone jammer. You know, there are a lot of them on the Internet. For example, Perfectjammer, America's largest online jammer store. This is an established retail and wholesale store that has operated jammers for decades. Here, you can always find the most advanced jammers.