I wasn’t even aware that the Australian government had banned the sale of paraphernalia but this article deals with why that was such a dumb move. The article talks about how users can easily make their own homemade bongs but why that might not be a good idea.

“The Rann Government's ban on bongs will not stop drug use and could have dangerous flow-on effects on the health of pot smokers, according to users and experts.

The State Government last night passed tough new laws so anyone selling cannabis bongs or drug implements will face fines of up to $50,000 or two years in jail.”

I’ve made quite a few homemade bongs in my time and never experienced any downsides. As long as you don't light the plastic (if using a plastic bottle) and use common sense, you should be fine. Am I wrong?